File SPDY_v3.patch of Package nginx - j0ke.net Open Build Service

File SPDY_v3.patch of Package nginx (Revision adedd3a6d37115aa975c989bb69dfbcb)

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# HG changeset patch
# User Weibin Yao <yaoweibin@gmail.com>
# Date 1387716217 -28800
# Sun Dec 22 20:43:37 2013 +0800
# Node ID 53a3d5ba3ad95f01ed917832080ba9620b66bdc7
# Parent a297b7ad6f941cd8a179e36f6f2eba833b1257a5
Support SPDY v3
* Upgrade protocol from SPDY v2 to SPDY v3
* Flow control(upload and download)
* Switch option between SPDY v2 and v3
This patch were developed by Liangbing Li And Xiaochen Wang
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 auto/sources
--- a/auto/sources Fri Dec 20 16:18:25 2013 +0400
+++ b/auto/sources Sun Dec 22 20:43:37 2013 +0800
@@ -330,7 +330,8 @@
src/http/ngx_http_spdy_module.h"
HTTP_SPDY_SRCS="src/http/ngx_http_spdy.c \
src/http/ngx_http_spdy_module.c \
- src/http/ngx_http_spdy_filter_module.c"
+ src/http/ngx_http_spdy_filter_module.c \
+ src/http/ngx_http_spdy_v3.c"
HTTP_CHARSET_FILTER_MODULE=ngx_http_charset_filter_module
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 src/http/modules/ngx_http_ssl_module.c
--- a/src/http/modules/ngx_http_ssl_module.c Fri Dec 20 16:18:25 2013 +0400
+++ b/src/http/modules/ngx_http_ssl_module.c Sun Dec 22 20:43:37 2013 +0800
@@ -9,6 +9,9 @@
#include <ngx_core.h>
#include <ngx_http.h>
+#if NGX_HTTP_SPDY
+#include <ngx_http_spdy_module.h>
+#endif
typedef ngx_int_t (*ngx_ssl_variable_handler_pt)(ngx_connection_t *c,
ngx_pool_t *pool, ngx_str_t *s);
@@ -298,13 +301,20 @@
#if (NGX_HTTP_SPDY)
{
- ngx_http_connection_t *hc;
+ ngx_http_connection_t *hc;
+ ngx_http_spdy_srv_conf_t *sscf;
hc = c->data;
+ sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_spdy_module);
if (hc->addr_conf->spdy) {
- *out = (unsigned char *) NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
- *outlen = sizeof(NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1;
+ if (sscf->version == NGX_SPDY_VERSION_V3) {
+ *out = (unsigned char *) NGX_SPDY_V3_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
+ *outlen = sizeof(NGX_SPDY_V3_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1;
+ } else {
+ *out = (unsigned char *) NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE;
+ *outlen = sizeof(NGX_SPDY_NPN_ADVERTISE NGX_HTTP_NPN_ADVERTISE) - 1;
+ }
return SSL_TLSEXT_ERR_OK;
}
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 src/http/ngx_http_request.c
--- a/src/http/ngx_http_request.c Fri Dec 20 16:18:25 2013 +0400
+++ b/src/http/ngx_http_request.c Sun Dec 22 20:43:37 2013 +0800
@@ -9,6 +9,10 @@
#include <ngx_core.h>
#include <ngx_http.h>
+#if (NGX_HTTP_SPDY && defined TLSEXT_TYPE_next_proto_neg)
+#include <ngx_http_spdy_module.h>
+#endif
+
static void ngx_http_wait_request_handler(ngx_event_t *ev);
static void ngx_http_process_request_line(ngx_event_t *rev);
@@ -730,9 +734,20 @@
#if (NGX_HTTP_SPDY && defined TLSEXT_TYPE_next_proto_neg)
{
- unsigned int len;
- const unsigned char *data;
- static const ngx_str_t spdy = ngx_string(NGX_SPDY_NPN_NEGOTIATED);
+ ngx_http_connection_t *hc;
+ ngx_http_spdy_srv_conf_t *sscf;
+ unsigned int len;
+ const unsigned char *data;
+ ngx_str_t spdy;
+
+ hc = c->data;
+ sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_spdy_module);
+
+ if (sscf->version == NGX_SPDY_VERSION_V3) {
+ ngx_str_set(&spdy, NGX_SPDY_V3_NPN_NEGOTIATED);
+ } else {
+ ngx_str_set(&spdy, NGX_SPDY_NPN_NEGOTIATED);
+ }
SSL_get0_next_proto_negotiated(c->ssl->connection, &data, &len);
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 src/http/ngx_http_spdy.c
--- a/src/http/ngx_http_spdy.c Fri Dec 20 16:18:25 2013 +0400
+++ b/src/http/ngx_http_spdy.c Sun Dec 22 20:43:37 2013 +0800
@@ -145,8 +145,6 @@
static void ngx_http_spdy_run_request(ngx_http_request_t *r);
static ngx_int_t ngx_http_spdy_init_request_body(ngx_http_request_t *r);
-static void ngx_http_spdy_close_stream_handler(ngx_event_t *ev);
-
static void ngx_http_spdy_handle_connection_handler(ngx_event_t *rev);
static void ngx_http_spdy_keepalive_handler(ngx_event_t *rev);
static void ngx_http_spdy_finalize_connection(ngx_http_spdy_connection_t *sc,
@@ -210,6 +208,12 @@
c = rev->data;
hc = c->data;
+ sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_spdy_module);
+
+ if (sscf->version == NGX_SPDY_VERSION_V3) {
+ ngx_http_spdy_v3_init(rev);
+ return;
+ }
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
"init spdy request");
@@ -234,6 +238,7 @@
sc->connection = c;
sc->http_connection = hc;
+ sc->version = sscf->version;
sc->handler = ngx_http_spdy_state_detect_settings;
@@ -253,8 +258,6 @@
sc->zstream_out.zfree = ngx_http_spdy_zfree;
sc->zstream_out.opaque = sc;
- sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_spdy_module);
-
rc = deflateInit2(&sc->zstream_out, (int) sscf->headers_comp,
Z_DEFLATED, 11, 4, Z_DEFAULT_STRATEGY);
@@ -522,7 +525,11 @@
for ( /* void */ ; out; out = out->next) {
if (out->handler(sc, out) != NGX_OK) {
out->blocked = 1;
- out->priority = NGX_SPDY_HIGHEST_PRIORITY;
+ if (sc->version == NGX_SPDY_VERSION_V3) {
+ out->priority = NGX_SPDY_V3_HIGHEST_PRIORITY;
+ } else {
+ out->priority = NGX_SPDY_HIGHEST_PRIORITY;
+ }
break;
}
@@ -2617,7 +2624,7 @@
}
-static void
+void
ngx_http_spdy_close_stream_handler(ngx_event_t *ev)
{
ngx_connection_t *fc;
@@ -2643,6 +2650,10 @@
ngx_http_spdy_connection_t *sc;
sc = stream->connection;
+ if (sc->version == NGX_SPDY_VERSION_V3) {
+ ngx_http_spdy_v3_close_stream(stream, rc);
+ return;
+ }
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
"spdy close stream %ui, processing %ui",
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 src/http/ngx_http_spdy.h
--- a/src/http/ngx_http_spdy.h Fri Dec 20 16:18:25 2013 +0400
+++ b/src/http/ngx_http_spdy.h Sun Dec 22 20:43:37 2013 +0800
@@ -15,11 +15,17 @@
#include <zlib.h>
-#define NGX_SPDY_VERSION 2
+#define NGX_SPDY_VERSION 2 /* default version */
+#define NGX_SPDY_VERSION_V2 2
+#define NGX_SPDY_VERSION_V3 3
+#define NGX_SPDY_VERSION_V31 31 /* reserved */
+#define NGX_SPDY_VERSION_V4 4 /* reserved */
#ifdef TLSEXT_TYPE_next_proto_neg
#define NGX_SPDY_NPN_ADVERTISE "\x06spdy/2"
#define NGX_SPDY_NPN_NEGOTIATED "spdy/2"
+#define NGX_SPDY_V3_NPN_ADVERTISE "\x06spdy/3"
+#define NGX_SPDY_V3_NPN_NEGOTIATED "spdy/3"
#endif
#define NGX_SPDY_STATE_BUFFER_SIZE 16
@@ -30,10 +36,11 @@
#define NGX_SPDY_SYN_REPLY 2
#define NGX_SPDY_RST_STREAM 3
#define NGX_SPDY_SETTINGS 4
-#define NGX_SPDY_NOOP 5
+#define NGX_SPDY_NOOP 5 /* only used by spdy/2 */
#define NGX_SPDY_PING 6
#define NGX_SPDY_GOAWAY 7
#define NGX_SPDY_HEADERS 8
+#define NGX_SPDY_WINDOW_UPDATE 9
#define NGX_SPDY_FRAME_HEADER_SIZE 8
@@ -41,15 +48,20 @@
#define NGX_SPDY_SYN_STREAM_SIZE 10
#define NGX_SPDY_SYN_REPLY_SIZE 6
+#define NGX_SPDY_V3_SYN_REPLY_SIZE 4
#define NGX_SPDY_RST_STREAM_SIZE 8
#define NGX_SPDY_PING_SIZE 4
#define NGX_SPDY_GOAWAY_SIZE 4
#define NGX_SPDY_NV_NUM_SIZE 2
#define NGX_SPDY_NV_NLEN_SIZE 2
#define NGX_SPDY_NV_VLEN_SIZE 2
+#define NGX_SPDY_V3_NV_NUM_SIZE 4
+#define NGX_SPDY_V3_NV_NLEN_SIZE 4
+#define NGX_SPDY_V3_NV_VLEN_SIZE 4
#define NGX_SPDY_SETTINGS_NUM_SIZE 4
#define NGX_SPDY_SETTINGS_IDF_SIZE 4
#define NGX_SPDY_SETTINGS_VAL_SIZE 4
+#define NGX_SPDY_WINDOW_UPDATE_SIZE 8
#define NGX_SPDY_SETTINGS_PAIR_SIZE \
(NGX_SPDY_SETTINGS_IDF_SIZE + NGX_SPDY_SETTINGS_VAL_SIZE)
@@ -57,6 +69,9 @@
#define NGX_SPDY_HIGHEST_PRIORITY 0
#define NGX_SPDY_LOWEST_PRIORITY 3
+#define NGX_SPDY_V3_HIGHEST_PRIORITY 0
+#define NGX_SPDY_V3_LOWEST_PRIORITY 7
+
#define NGX_SPDY_FLAG_FIN 0x01
#define NGX_SPDY_FLAG_UNIDIRECTIONAL 0x02
#define NGX_SPDY_FLAG_CLEAR_SETTINGS 0x01
@@ -67,6 +82,10 @@
#define NGX_SPDY_DATA_ERROR 2
#define NGX_SPDY_DATA_INTERNAL_ERROR 3
+#define NGX_SPDY_TMP_WINDOW_SIZE (1 << 30)
+#define NGX_SPDY_INIT_SEND_WINDOW_SIZE (1 << 16)
+#define NGX_SPDY_INIT_RECV_WINDOW_SIZE (1 << 16)
+#define NGX_SPDY_DELTA_WINDOW_SIZE_SIZE 4
typedef struct ngx_http_spdy_connection_s ngx_http_spdy_connection_t;
typedef struct ngx_http_spdy_out_frame_s ngx_http_spdy_out_frame_t;
@@ -106,8 +125,13 @@
ngx_uint_t last_sid;
+ ngx_uint_t version;
+ ngx_int_t init_send_window_size;
+ ngx_int_t init_recv_window_size;
+
unsigned blocked:2;
unsigned waiting:1; /* FIXME better name */
+ unsigned need_settings:1;
};
@@ -123,7 +147,12 @@
ngx_http_spdy_out_frame_t *free_frames;
ngx_chain_t *free_data_headers;
- unsigned priority:2;
+ /* spdy/3: flow control */
+ ngx_chain_t *pending;
+ ngx_int_t send_window_size;
+ ngx_int_t recv_window_size;
+
+ unsigned priority:3;
unsigned handled:1;
unsigned in_closed:1;
unsigned out_closed:1;
@@ -184,14 +213,19 @@
*out = frame;
}
-
void ngx_http_spdy_init(ngx_event_t *rev);
void ngx_http_spdy_request_headers_init(void);
+void ngx_http_spdy_v3_init(ngx_event_t *rev);
+void ngx_http_spdy_v3_request_headers_init(void);
+
ngx_int_t ngx_http_spdy_read_request_body(ngx_http_request_t *r,
ngx_http_client_body_handler_pt post_handler);
void ngx_http_spdy_close_stream(ngx_http_spdy_stream_t *stream, ngx_int_t rc);
+void ngx_http_spdy_v3_close_stream(ngx_http_spdy_stream_t *stream, ngx_int_t rc);
+
+void ngx_http_spdy_close_stream_handler(ngx_event_t *ev);
ngx_int_t ngx_http_spdy_send_output_queue(ngx_http_spdy_connection_t *sc);
@@ -220,16 +254,22 @@
#endif
-
#define ngx_spdy_ctl_frame_head(t) \
((uint32_t) NGX_SPDY_CTL_BIT << 31 | NGX_SPDY_VERSION << 16 | (t))
#define ngx_spdy_frame_write_head(p, t) \
ngx_spdy_frame_aligned_write_uint32(p, ngx_spdy_ctl_frame_head(t))
+#define ngx_spdy_v3_ctl_frame_head(t) \
+ ((uint32_t) NGX_SPDY_CTL_BIT << 31 | NGX_SPDY_VERSION_V3 << 16 | (t))
+
+#define ngx_spdy_v3_frame_write_head(p, t) \
+ ngx_spdy_frame_aligned_write_uint32(p, ngx_spdy_v3_ctl_frame_head(t))
+
#define ngx_spdy_frame_write_flags_and_len(p, f, l) \
ngx_spdy_frame_aligned_write_uint32(p, (f) << 24 | (l))
#define ngx_spdy_frame_write_sid ngx_spdy_frame_aligned_write_uint32
+#define ngx_spdy_frame_write_delta_window_size ngx_spdy_frame_aligned_write_uint32
#endif /* _NGX_HTTP_SPDY_H_INCLUDED_ */
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 src/http/ngx_http_spdy_filter_module.c
--- a/src/http/ngx_http_spdy_filter_module.c Fri Dec 20 16:18:25 2013 +0400
+++ b/src/http/ngx_http_spdy_filter_module.c Sun Dec 22 20:43:37 2013 +0800
@@ -29,6 +29,21 @@
#define ngx_http_spdy_nv_write_val(p, h) \
ngx_cpymem(ngx_http_spdy_nv_write_vlen(p, sizeof(h) - 1), h, sizeof(h) - 1)
+/* spdy/3 */
+#define ngx_http_spdy_v3_nv_nsize(h) (NGX_SPDY_V3_NV_NLEN_SIZE + sizeof(h) - 1)
+#define ngx_http_spdy_v3_nv_vsize(h) (NGX_SPDY_V3_NV_VLEN_SIZE + sizeof(h) - 1)
+
+#define ngx_http_spdy_v3_nv_write_num ngx_spdy_frame_write_uint32
+#define ngx_http_spdy_v3_nv_write_nlen ngx_spdy_frame_write_uint32
+#define ngx_http_spdy_v3_nv_write_vlen ngx_spdy_frame_write_uint32
+
+#define ngx_http_spdy_v3_nv_write_name(p, h) \
+ ngx_cpymem(ngx_http_spdy_v3_nv_write_nlen(p, sizeof(h) - 1), h, sizeof(h) - 1)
+
+#define ngx_http_spdy_v3_nv_write_val(p, h) \
+ ngx_cpymem(ngx_http_spdy_v3_nv_write_vlen(p, sizeof(h) - 1), h, sizeof(h) - 1)
+
+
static ngx_inline ngx_int_t ngx_http_spdy_filter_send(
ngx_connection_t *fc, ngx_http_spdy_stream_t *stream);
@@ -50,6 +65,13 @@
static ngx_int_t ngx_http_spdy_filter_init(ngx_conf_t *cf);
+static ngx_int_t ngx_http_spdy_v3_header_filter(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_v3_body_filter(
+ ngx_http_request_t *r, ngx_chain_t *in);
+static ngx_chain_t * ngx_http_spdy_split_chain(
+ ngx_http_spdy_stream_t *stream, ngx_int_t limit);
+
+
static ngx_http_module_t ngx_http_spdy_filter_module_ctx = {
NULL, /* preconfiguration */
ngx_http_spdy_filter_init, /* postconfiguration */
@@ -114,6 +136,13 @@
return ngx_http_next_header_filter(r);
}
+ stream = r->spdy_stream;
+ sc = stream->connection;
+
+ if (sc->version == NGX_SPDY_VERSION_V3) {
+ return ngx_http_spdy_v3_header_filter(r);
+ }
+
ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy header filter");
@@ -512,9 +541,6 @@
(void) ngx_http_spdy_nv_write_num(buf, count);
- stream = r->spdy_stream;
- sc = stream->connection;
-
len = last - buf;
b = ngx_create_temp_buf(r->pool, NGX_SPDY_FRAME_HEADER_SIZE
@@ -614,6 +640,524 @@
static ngx_int_t
+ngx_http_spdy_v3_header_filter(ngx_http_request_t *r)
+{
+ int rc;
+ size_t len;
+ u_char *p, *buf, *last;
+ ngx_buf_t *b;
+ ngx_str_t host;
+ ngx_uint_t i, j, count, port;
+ ngx_chain_t *cl;
+ ngx_list_part_t *part, *pt;
+ ngx_table_elt_t *header, *h;
+ ngx_connection_t *c;
+ ngx_http_cleanup_t *cln;
+ ngx_http_core_loc_conf_t *clcf;
+ ngx_http_core_srv_conf_t *cscf;
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_spdy_out_frame_t *frame;
+ ngx_http_spdy_connection_t *sc;
+ struct sockaddr_in *sin;
+#if (NGX_HAVE_INET6)
+ struct sockaddr_in6 *sin6;
+#endif
+ u_char addr[NGX_SOCKADDR_STRLEN];
+
+ if (!r->spdy_stream) {
+ return ngx_http_next_header_filter(r);
+ }
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy header filter");
+
+ if (r->header_sent) {
+ return NGX_OK;
+ }
+
+ r->header_sent = 1;
+
+ if (r != r->main) {
+ return NGX_OK;
+ }
+
+ c = r->connection;
+
+ if (r->method == NGX_HTTP_HEAD) {
+ r->header_only = 1;
+ }
+
+ switch (r->headers_out.status) {
+
+ case NGX_HTTP_OK:
+ case NGX_HTTP_PARTIAL_CONTENT:
+ break;
+
+ case NGX_HTTP_NOT_MODIFIED:
+ r->header_only = 1;
+ break;
+
+ case NGX_HTTP_NO_CONTENT:
+ r->header_only = 1;
+
+ ngx_str_null(&r->headers_out.content_type);
+
+ r->headers_out.content_length = NULL;
+ r->headers_out.content_length_n = -1;
+
+ /* fall through */
+
+ default:
+ r->headers_out.last_modified_time = -1;
+ r->headers_out.last_modified = NULL;
+ }
+
+ len = NGX_SPDY_V3_NV_NUM_SIZE
+ + ngx_http_spdy_v3_nv_nsize(":version")
+ + ngx_http_spdy_v3_nv_vsize("HTTP/1.1")
+ + ngx_http_spdy_v3_nv_nsize(":status")
+ + ngx_http_spdy_v3_nv_vsize("418");
+
+ clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
+
+ if (r->headers_out.server == NULL) {
+ len += ngx_http_spdy_v3_nv_nsize("server");
+ len += clcf->server_tokens ? ngx_http_spdy_v3_nv_vsize(NGINX_VER)
+ : ngx_http_spdy_v3_nv_vsize("nginx");
+ }
+
+ if (r->headers_out.date == NULL) {
+ len += ngx_http_spdy_v3_nv_nsize("date")
+ + ngx_http_spdy_v3_nv_vsize("Wed, 31 Dec 1986 10:00:00 GMT");
+ }
+
+ if (r->headers_out.content_type.len) {
+ len += ngx_http_spdy_v3_nv_nsize("content-type")
+ + NGX_SPDY_V3_NV_VLEN_SIZE + r->headers_out.content_type.len;
+
+ if (r->headers_out.content_type_len == r->headers_out.content_type.len
+ && r->headers_out.charset.len)
+ {
+ len += sizeof("; charset=") - 1 + r->headers_out.charset.len;
+ }
+ }
+
+ if (r->headers_out.content_length == NULL
+ && r->headers_out.content_length_n >= 0)
+ {
+ len += ngx_http_spdy_v3_nv_nsize("content-length")
+ + NGX_SPDY_V3_NV_VLEN_SIZE + NGX_OFF_T_LEN;
+ }
+
+ if (r->headers_out.last_modified == NULL
+ && r->headers_out.last_modified_time != -1)
+ {
+ len += ngx_http_spdy_v3_nv_nsize("last-modified")
+ + ngx_http_spdy_v3_nv_vsize("Wed, 31 Dec 1986 10:00:00 GMT");
+ }
+
+ if (r->headers_out.location
+ && r->headers_out.location->value.len
+ && r->headers_out.location->value.data[0] == '/')
+ {
+ r->headers_out.location->hash = 0;
+
+ if (clcf->server_name_in_redirect) {
+ cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
+ host = cscf->server_name;
+
+ } else if (r->headers_in.server.len) {
+ host = r->headers_in.server;
+
+ } else {
+ host.len = NGX_SOCKADDR_STRLEN;
+ host.data = addr;
+
+ if (ngx_connection_local_sockaddr(c, &host, 0) != NGX_OK) {
+ return NGX_ERROR;
+ }
+ }
+
+ switch (c->local_sockaddr->sa_family) {
+
+#if (NGX_HAVE_INET6)
+ case AF_INET6:
+ sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
+ port = ntohs(sin6->sin6_port);
+ break;
+#endif
+#if (NGX_HAVE_UNIX_DOMAIN)
+ case AF_UNIX:
+ port = 0;
+ break;
+#endif
+ default: /* AF_INET */
+ sin = (struct sockaddr_in *) c->local_sockaddr;
+ port = ntohs(sin->sin_port);
+ break;
+ }
+
+ len += ngx_http_spdy_v3_nv_nsize("location")
+ + ngx_http_spdy_v3_nv_vsize("https://")
+ + host.len
+ + r->headers_out.location->value.len;
+
+ if (clcf->port_in_redirect) {
+
+#if (NGX_HTTP_SSL)
+ if (c->ssl)
+ port = (port == 443) ? 0 : port;
+ else
+#endif
+ port = (port == 80) ? 0 : port;
+
+ } else {
+ port = 0;
+ }
+
+ if (port) {
+ len += sizeof(":65535") - 1;
+ }
+
+ } else {
+ ngx_str_null(&host);
+ port = 0;
+ }
+
+ part = &r->headers_out.headers.part;
+ header = part->elts;
+
+ for (i = 0; /* void */; i++) {
+
+ if (i >= part->nelts) {
+ if (part->next == NULL) {
+ break;
+ }
+
+ part = part->next;
+ header = part->elts;
+ i = 0;
+ }
+
+ if (header[i].hash == 0) {
+ continue;
+ }
+
+ len += NGX_SPDY_V3_NV_NLEN_SIZE + header[i].key.len
+ + NGX_SPDY_V3_NV_VLEN_SIZE + header[i].value.len;
+ }
+
+ buf = ngx_alloc(len, r->pool->log);
+ if (buf == NULL) {
+ return NGX_ERROR;
+ }
+
+ last = buf + NGX_SPDY_V3_NV_NUM_SIZE;
+
+ last = ngx_http_spdy_v3_nv_write_name(last, ":version");
+ last = ngx_http_spdy_v3_nv_write_val(last, "HTTP/1.1");
+
+ last = ngx_http_spdy_v3_nv_write_name(last, ":status");
+ last = ngx_spdy_frame_write_uint32(last, 3);
+ last = ngx_sprintf(last, "%03ui", r->headers_out.status);
+
+ count = 2;
+
+ if (r->headers_out.server == NULL) {
+ last = ngx_http_spdy_v3_nv_write_name(last, "server");
+ last = clcf->server_tokens
+ ? ngx_http_spdy_v3_nv_write_val(last, NGINX_VER)
+ : ngx_http_spdy_v3_nv_write_val(last, "nginx");
+
+ count++;
+ }
+
+ if (r->headers_out.date == NULL) {
+ last = ngx_http_spdy_v3_nv_write_name(last, "date");
+
+ last = ngx_http_spdy_v3_nv_write_vlen(last, ngx_cached_http_time.len);
+
+ last = ngx_cpymem(last, ngx_cached_http_time.data,
+ ngx_cached_http_time.len);
+
+ count++;
+ }
+
+ if (r->headers_out.content_type.len) {
+
+ last = ngx_http_spdy_v3_nv_write_name(last, "content-type");
+
+ p = last + NGX_SPDY_V3_NV_VLEN_SIZE;
+
+ last = ngx_cpymem(p, r->headers_out.content_type.data,
+ r->headers_out.content_type.len);
+
+ if (r->headers_out.content_type_len == r->headers_out.content_type.len
+ && r->headers_out.charset.len)
+ {
+ last = ngx_cpymem(last, "; charset=", sizeof("; charset=") - 1);
+
+ last = ngx_cpymem(last, r->headers_out.charset.data,
+ r->headers_out.charset.len);
+
+ /* update r->headers_out.content_type for possible logging */
+
+ r->headers_out.content_type.len = last - p;
+ r->headers_out.content_type.data = p;
+ }
+
+ (void) ngx_http_spdy_v3_nv_write_vlen(p - NGX_SPDY_V3_NV_VLEN_SIZE,
+ r->headers_out.content_type.len);
+
+ count++;
+ }
+
+ if (r->headers_out.content_length == NULL
+ && r->headers_out.content_length_n >= 0)
+ {
+ last = ngx_http_spdy_v3_nv_write_name(last, "content-length");
+
+ p = last + NGX_SPDY_V3_NV_VLEN_SIZE;
+
+ last = ngx_sprintf(p, "%O", r->headers_out.content_length_n);
+
+ (void) ngx_http_spdy_v3_nv_write_vlen(p - NGX_SPDY_V3_NV_VLEN_SIZE,
+ last - p);
+
+ count++;
+ }
+
+ if (r->headers_out.last_modified == NULL
+ && r->headers_out.last_modified_time != -1)
+ {
+ last = ngx_http_spdy_v3_nv_write_name(last, "last-modified");
+
+ p = last + NGX_SPDY_V3_NV_VLEN_SIZE;
+
+ last = ngx_http_time(p, r->headers_out.last_modified_time);
+
+ (void) ngx_http_spdy_v3_nv_write_vlen(p - NGX_SPDY_V3_NV_VLEN_SIZE,
+ last - p);
+
+ count++;
+ }
+
+ if (host.data) {
+
+ last = ngx_http_spdy_v3_nv_write_name(last, "location");
+
+ p = last + NGX_SPDY_V3_NV_VLEN_SIZE;
+
+ last = ngx_cpymem(p, "http", sizeof("http") - 1);
+
+#if (NGX_HTTP_SSL)
+ if (c->ssl) {
+ *last++ ='s';
+ }
+#endif
+
+ *last++ = ':'; *last++ = '/'; *last++ = '/';
+
+ last = ngx_cpymem(last, host.data, host.len);
+
+ if (port) {
+ last = ngx_sprintf(last, ":%ui", port);
+ }
+
+ last = ngx_cpymem(last, r->headers_out.location->value.data,
+ r->headers_out.location->value.len);
+
+ /* update r->headers_out.location->value for possible logging */
+
+ r->headers_out.location->value.len = last - p;
+ r->headers_out.location->value.data = p;
+ ngx_str_set(&r->headers_out.location->key, "location");
+
+ (void) ngx_http_spdy_v3_nv_write_vlen(p - NGX_SPDY_V3_NV_VLEN_SIZE,
+ r->headers_out.location->value.len);
+
+ count++;
+ }
+
+ part = &r->headers_out.headers.part;
+ header = part->elts;
+
+ for (i = 0; /* void */; i++) {
+
+ if (i >= part->nelts) {
+ if (part->next == NULL) {
+ break;
+ }
+
+ part = part->next;
+ header = part->elts;
+ i = 0;
+ }
+
+ if (header[i].hash == 0 || header[i].hash == 2) {
+ continue;
+ }
+
+ if ((header[i].key.len == 6
+ && ngx_strncasecmp(header[i].key.data,
+ (u_char *) "status", 6) == 0)
+ || (header[i].key.len == 7
+ && ngx_strncasecmp(header[i].key.data,
+ (u_char *) "version", 7) == 0))
+ {
+ header[i].hash = 0;
+ continue;
+ }
+
+ last = ngx_http_spdy_v3_nv_write_nlen(last, header[i].key.len);
+
+ ngx_strlow(last, header[i].key.data, header[i].key.len);
+ last += header[i].key.len;
+
+ p = last + NGX_SPDY_V3_NV_VLEN_SIZE;
+
+ last = ngx_cpymem(p, header[i].value.data, header[i].value.len);
+
+ pt = part;
+ h = header;
+
+ for (j = i + 1; /* void */; j++) {
+
+ if (j >= pt->nelts) {
+ if (pt->next == NULL) {
+ break;
+ }
+
+ pt = pt->next;
+ h = pt->elts;
+ j = 0;
+ }
+
+ if (h[j].hash == 0 || h[j].hash == 2
+ || h[j].key.len != header[i].key.len
+ || ngx_strncasecmp(header[i].key.data, h[j].key.data,
+ header[i].key.len))
+ {
+ continue;
+ }
+
+ *last++ = '\0';
+
+ last = ngx_cpymem(last, h[j].value.data, h[j].value.len);
+
+ h[j].hash = 2;
+ }
+
+ (void) ngx_http_spdy_v3_nv_write_vlen(p - NGX_SPDY_V3_NV_VLEN_SIZE,
+ last - p);
+
+ count++;
+ }
+
+ (void) ngx_spdy_frame_write_uint32(buf, count);
+
+ stream = r->spdy_stream;
+ sc = stream->connection;
+
+ len = last - buf;
+
+ b = ngx_create_temp_buf(r->pool, NGX_SPDY_FRAME_HEADER_SIZE
+ + NGX_SPDY_V3_SYN_REPLY_SIZE
+ + deflateBound(&sc->zstream_out, len));
+ if (b == NULL) {
+ ngx_free(buf);
+ return NGX_ERROR;
+ }
+
+ b->last += NGX_SPDY_FRAME_HEADER_SIZE + NGX_SPDY_V3_SYN_REPLY_SIZE;
+
+ sc->zstream_out.next_in = buf;
+ sc->zstream_out.avail_in = len;
+ sc->zstream_out.next_out = b->last;
+ sc->zstream_out.avail_out = b->end - b->last;
+
+ rc = deflate(&sc->zstream_out, Z_SYNC_FLUSH);
+
+ ngx_free(buf);
+
+ if (rc != Z_OK) {
+ ngx_log_error(NGX_LOG_ALERT, c->log, 0,
+ "spdy deflate() failed: %d", rc);
+ return NGX_ERROR;
+ }
+
+ ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "spdy deflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d",
+ sc->zstream_out.next_in, sc->zstream_out.next_out,
+ sc->zstream_out.avail_in, sc->zstream_out.avail_out,
+ rc);
+
+ b->last = sc->zstream_out.next_out;
+
+ p = b->pos;
+ p = ngx_spdy_v3_frame_write_head(p, NGX_SPDY_SYN_REPLY);
+
+ len = b->last - b->pos;
+
+ r->header_size = len;
+
+ if (r->header_only) {
+ b->last_buf = 1;
+ p = ngx_spdy_frame_write_flags_and_len(p, NGX_SPDY_FLAG_FIN,
+ len - NGX_SPDY_FRAME_HEADER_SIZE);
+ } else {
+ p = ngx_spdy_frame_write_flags_and_len(p, 0,
+ len - NGX_SPDY_FRAME_HEADER_SIZE);
+ }
+
+ (void) ngx_spdy_frame_write_sid(p, stream->id);
+
+ cl = ngx_alloc_chain_link(r->pool);
+ if (cl == NULL) {
+ return NGX_ERROR;
+ }
+
+ cl->buf = b;
+ cl->next = NULL;
+
+ frame = ngx_palloc(r->pool, sizeof(ngx_http_spdy_out_frame_t));
+ if (frame == NULL) {
+ return NGX_ERROR;
+ }
+
+ frame->first = cl;
+ frame->last = cl;
+ frame->handler = ngx_http_spdy_syn_frame_handler;
+ frame->free = NULL;
+ frame->stream = stream;
+ frame->size = len;
+ frame->priority = stream->priority;
+ frame->blocked = 1;
+ frame->fin = r->header_only;
+
+ ngx_log_debug3(NGX_LOG_DEBUG_HTTP, stream->request->connection->log, 0,
+ "spdy:%ui create SYN_REPLY frame %p: size:%uz",
+ stream->id, frame, frame->size);
+
+ ngx_http_spdy_queue_blocked_frame(sc, frame);
+
+ r->blocked++;
+
+ cln = ngx_http_cleanup_add(r, 0);
+ if (cln == NULL) {
+ return NGX_ERROR;
+ }
+
+ cln->handler = ngx_http_spdy_filter_cleanup;
+ cln->data = stream;
+
+ stream->waiting = 1;
+
+ return ngx_http_spdy_filter_send(c, stream);
+}
+
+
+static ngx_int_t
ngx_http_spdy_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
{
off_t size;
@@ -628,6 +1172,10 @@
return ngx_http_next_body_filter(r, in);
}
+ if (stream->connection->version == NGX_SPDY_VERSION_V3) {
+ return ngx_http_spdy_v3_body_filter(r, in);
+ }
+
ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
"spdy body filter \"%V?%V\"", &r->uri, &r->args);
@@ -707,6 +1255,240 @@
}
+static ngx_int_t
+ngx_http_spdy_v3_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
+{
+ off_t total, size;
+ ngx_buf_t *b;
+ ngx_chain_t *cl, *tl, *ll, *out, **ln;
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_spdy_srv_conf_t *sscf;
+ ngx_http_spdy_out_frame_t *frame;
+
+ total = 0;
+ size = 0;
+ out = NULL;
+ stream = r->spdy_stream;
+
+ if (stream == NULL) {
+ return ngx_http_next_body_filter(r, in);
+ }
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy body filter \"%V?%V\"", &r->uri, &r->args);
+
+ if (in == NULL || r->header_only) {
+
+ if (stream->pending && (stream->send_window_size > 0)) {
+ goto output;
+ }
+
+ if (stream->waiting) {
+ return NGX_AGAIN;
+ }
+
+ if (!stream->pending) {
+ r->connection->buffered &= ~NGX_SPDY_WRITE_BUFFERED;
+ }
+
+ return NGX_OK;
+ }
+
+ ln = &out;
+ ll = in;
+
+ for ( ;; ) {
+ b = ll->buf;
+#if 1
+ if (ngx_buf_size(b) == 0 && !ngx_buf_special(b)) {
+ ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
+ "zero size buf in spdy body filter "
+ "t:%d r:%d f:%d %p %p-%p %p %O-%O",
+ b->temporary,
+ b->recycled,
+ b->in_file,
+ b->start,
+ b->pos,
+ b->last,
+ b->file,
+ b->file_pos,
+ b->file_last);
+
+ ngx_debug_point();
+ return NGX_ERROR;
+ }
+#endif
+ cl = ngx_alloc_chain_link(r->pool);
+ if (cl == NULL) {
+ return NGX_ERROR;
+ }
+
+ cl->next = NULL;
+
+ size += ngx_buf_size(b);
+ cl->buf = b;
+
+ *ln = cl;
+ ln = &cl->next;
+
+ if (ll->next == NULL) {
+ break;
+ }
+
+ ll = ll->next;
+ }
+
+output:
+
+ total = size;
+ if (stream->pending) {
+ for (tl = stream->pending; ;tl = tl->next) {
+
+ total += ngx_buf_size(tl->buf);
+ if (tl->next == NULL) {
+ break;
+ }
+ }
+ tl->next = out;
+ } else {
+ stream->pending = out;
+ }
+
+ ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy id=%ui, send_window_size=%i, total=%O",
+ stream->id, stream->send_window_size, total);
+
+ if (stream->send_window_size == 0) {
+
+ ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
+ "zero send windows size");
+
+ r->connection->buffered |= NGX_SPDY_WRITE_BUFFERED;
+ return NGX_AGAIN;
+ } else if (total > stream->send_window_size) {
+ out = ngx_http_spdy_split_chain(stream, stream->send_window_size);
+ if (out == NULL) {
+ return NGX_ERROR;
+ }
+
+ r->connection->buffered |= NGX_SPDY_WRITE_BUFFERED;
+ stream->send_window_size = 0;
+ } else {
+ out = stream->pending;
+ stream->pending = NULL;
+ stream->send_window_size -= total;
+ }
+
+ size = 0;
+ cl = out;
+ for (;;) {
+
+ size += ngx_buf_size(cl->buf);
+
+ ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy, cl=%p, cl->buf=%p, size=%uz, fin:%d",
+ cl, cl->buf, ngx_buf_size(cl->buf), cl->buf->last_buf);
+
+ if (cl->next == NULL) {
+ b = cl->buf;
+ break;
+ }
+
+ cl = cl->next;
+ }
+
+ frame = ngx_http_spdy_filter_get_data_frame(stream, (size_t) size,
+ b->last_buf, out, cl);
+ if (frame == NULL) {
+ return NGX_ERROR;
+ }
+
+ ngx_http_spdy_queue_frame(stream->connection, frame);
+
+ stream->waiting++;
+
+ r->main->blocked++;
+
+ sscf = ngx_http_get_module_srv_conf(stream->connection->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+ if (!sscf->flow_control) {
+ stream->send_window_size = NGX_SPDY_TMP_WINDOW_SIZE;
+ }
+
+ return ngx_http_spdy_filter_send(r->connection, stream);
+}
+
+
+static ngx_chain_t *
+ngx_http_spdy_split_chain(ngx_http_spdy_stream_t *stream, ngx_int_t limit)
+{
+ ngx_buf_t *b, *nb;
+ ngx_chain_t *pre, *ll, *cl, *out;
+ ngx_http_request_t *r;
+
+ r = stream->request;
+
+ pre = out = ll = stream->pending;
+
+ for ( ;; ) {
+
+ if (ll == NULL) {
+ break;
+ }
+
+ b = ll->buf;
+
+ if (limit > ngx_buf_size(b)) {
+ limit -= ngx_buf_size(b);
+ } else if (limit == ngx_buf_size(b)) {
+ stream->pending = ll->next;
+ ll->next = NULL;
+ return out;
+ } else {
+ cl = ngx_alloc_chain_link(r->pool);
+ if (cl == NULL) {
+ return NULL;
+ }
+
+ nb = ngx_palloc(r->pool, sizeof(ngx_buf_t));
+ if (nb == NULL) {
+ return NULL;
+ }
+
+ cl->buf = nb;
+ cl->next = NULL;
+
+ *nb = *b;
+
+ nb->last_buf = 0;
+ nb->tag = (void *) ngx_http_spdy_split_chain;
+
+ if (b->in_file) {
+ nb->file_last = nb->file_pos + limit;
+ b->file_pos += limit;
+ } else {
+ nb->last = nb->pos + limit;
+ b->pos += limit;
+ }
+
+ stream->pending = ll;
+
+ if (ll == out) {
+ return cl;
+ } else {
+ pre->next = cl;
+ return out;
+ }
+ }
+
+ pre = ll;
+ ll = ll->next;
+ }
+
+ return NULL;
+}
+
+
static ngx_http_spdy_out_frame_t *
ngx_http_spdy_filter_get_data_frame(ngx_http_spdy_stream_t *stream,
size_t len, ngx_uint_t fin, ngx_chain_t *first, ngx_chain_t *last)
@@ -806,7 +1588,9 @@
return NGX_AGAIN;
}
- fc->buffered &= ~NGX_SPDY_WRITE_BUFFERED;
+ if (!stream->pending) {
+ fc->buffered &= ~NGX_SPDY_WRITE_BUFFERED;
+ }
return NGX_OK;
}
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 src/http/ngx_http_spdy_module.c
--- a/src/http/ngx_http_spdy_module.c Fri Dec 20 16:18:25 2013 +0400
+++ b/src/http/ngx_http_spdy_module.c Sun Dec 22 20:43:37 2013 +0800
@@ -45,6 +45,12 @@
static ngx_conf_post_t ngx_http_spdy_streams_index_mask_post =
{ ngx_http_spdy_streams_index_mask };
+static ngx_conf_enum_t ngx_http_spdy_versions[] = {
+ { ngx_string("2"), NGX_SPDY_VERSION_V2 },
+ { ngx_string("3"), NGX_SPDY_VERSION_V3 },
+ { ngx_null_string, 0 }
+};
+
static ngx_command_t ngx_http_spdy_commands[] = {
@@ -62,6 +68,13 @@
offsetof(ngx_http_spdy_srv_conf_t, pool_size),
&ngx_http_spdy_pool_size_post },
+ { ngx_string("spdy_flow_control"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_flag_slot,
+ NGX_HTTP_SRV_CONF_OFFSET,
+ offsetof(ngx_http_spdy_srv_conf_t, flow_control),
+ NULL },
+
{ ngx_string("spdy_max_concurrent_streams"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
@@ -69,6 +82,13 @@
offsetof(ngx_http_spdy_srv_conf_t, concurrent_streams),
NULL },
+ { ngx_string("spdy_init_recv_window_size"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_size_slot,
+ NGX_HTTP_SRV_CONF_OFFSET,
+ offsetof(ngx_http_spdy_srv_conf_t, init_recv_window_size),
+ NULL },
+
{ ngx_string("spdy_streams_index_size"),
NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
ngx_conf_set_num_slot,
@@ -97,6 +117,13 @@
offsetof(ngx_http_spdy_srv_conf_t, headers_comp),
&ngx_http_spdy_headers_comp_bounds },
+ { ngx_string("spdy_version"),
+ NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
+ ngx_conf_set_enum_slot,
+ NGX_HTTP_SRV_CONF_OFFSET,
+ offsetof(ngx_http_spdy_srv_conf_t, version),
+ &ngx_http_spdy_versions },
+
ngx_null_command
};
@@ -172,7 +199,11 @@
v->valid = 1;
v->no_cacheable = 0;
v->not_found = 0;
- v->data = (u_char *) "2";
+ if (r->spdy_stream->connection->version == NGX_SPDY_VERSION_V3) {
+ v->data = (u_char *) "3";
+ } else {
+ v->data = (u_char *) "2";
+ }
return NGX_OK;
}
@@ -212,6 +243,7 @@
static ngx_int_t
ngx_http_spdy_module_init(ngx_cycle_t *cycle)
{
+ ngx_http_spdy_v3_request_headers_init();
ngx_http_spdy_request_headers_init();
return NGX_OK;
@@ -267,6 +299,10 @@
sscf->headers_comp = NGX_CONF_UNSET;
+ sscf->init_recv_window_size = NGX_CONF_UNSET_UINT;
+ sscf->flow_control = NGX_CONF_UNSET;
+ sscf->version = NGX_CONF_UNSET_UINT;
+
return sscf;
}
@@ -292,6 +328,13 @@
ngx_conf_merge_value(conf->headers_comp, prev->headers_comp, 0);
+ ngx_conf_merge_uint_value(conf->init_recv_window_size,
+ prev->init_recv_window_size,
+ NGX_SPDY_INIT_RECV_WINDOW_SIZE);
+ ngx_conf_merge_value(conf->flow_control, prev->flow_control, 1);
+ ngx_conf_merge_uint_value(conf->version,
+ prev->version, NGX_SPDY_VERSION_V3);
+
return NGX_CONF_OK;
}
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 src/http/ngx_http_spdy_module.h
--- a/src/http/ngx_http_spdy_module.h Fri Dec 20 16:18:25 2013 +0400
+++ b/src/http/ngx_http_spdy_module.h Sun Dec 22 20:43:37 2013 +0800
@@ -27,6 +27,9 @@
ngx_msec_t recv_timeout;
ngx_msec_t keepalive_timeout;
ngx_int_t headers_comp;
+ ngx_uint_t init_recv_window_size;
+ ngx_flag_t flow_control;
+ ngx_uint_t version;
} ngx_http_spdy_srv_conf_t;
diff -r a297b7ad6f94 -r 53a3d5ba3ad9 src/http/ngx_http_spdy_v3.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/http/ngx_http_spdy_v3.c Sun Dec 22 20:43:37 2013 +0800
@@ -0,0 +1,3297 @@
+
+/*
+ * Copyright (C) Nginx, Inc.
+ * Copyright (C) Valentin V. Bartenev
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+#include <ngx_http.h>
+#include <ngx_http_spdy_module.h>
+
+#include <zlib.h>
+
+
+#if (NGX_HAVE_LITTLE_ENDIAN && NGX_HAVE_NONALIGNED)
+
+#define ngx_str5cmp(m, c0, c1, c2, c3, c4) \
+ *(uint32_t *) m == (c3 << 24 | c2 << 16 | c1 << 8 | c0) \
+ && m[4] == c4
+
+#else
+
+#define ngx_str5cmp(m, c0, c1, c2, c3, c4) \
+ m[0] == c0 && m[1] == c1 && m[2] == c2 && m[3] == c3 && m[4] == c4
+
+#endif
+
+
+#if (NGX_HAVE_NONALIGNED)
+
+#define ngx_spdy_frame_parse_uint16(p) ntohs(*(uint16_t *) (p))
+#define ngx_spdy_frame_parse_uint32(p) ntohl(*(uint32_t *) (p))
+
+#else
+
+#define ngx_spdy_frame_parse_uint16(p) ((p)[0] << 8 | (p)[1])
+#define ngx_spdy_frame_parse_uint32(p) \
+ ((p)[0] << 24 | (p)[1] << 16 | (p)[2] << 8 | (p)[3])
+
+#endif
+
+#define ngx_spdy_frame_parse_sid(p) \
+ (ngx_spdy_frame_parse_uint32(p) & 0x7fffffff)
+#define ngx_spdy_frame_parse_delta_window_size(p) \
+ (ngx_spdy_frame_parse_uint32(p) & 0x7fffffff)
+
+#define ngx_spdy_ctl_frame_check(h) \
+ (((h) & 0xffffff00) == ngx_spdy_v3_ctl_frame_head(0))
+#define ngx_spdy_data_frame_check(h) \
+ (!((h) & (uint32_t) NGX_SPDY_CTL_BIT << 31))
+
+#define ngx_spdy_ctl_frame_type(h) ((h) & 0x000000ff)
+#define ngx_spdy_frame_flags(p) ((p) >> 24)
+#define ngx_spdy_frame_length(p) ((p) & 0x00ffffff)
+
+#define ngx_spdy_setting_id_flags(p) ((p) >> 24)
+#define ngx_spdy_setting_id(p) ((p) & 0x00ffffff)
+
+#define NGX_SPDY_SKIP_HEADERS_BUFFER_SIZE 4096
+#define NGX_SPDY_CTL_FRAME_BUFFER_SIZE 16
+
+#define NGX_SPDY_PROTOCOL_ERROR 1
+#define NGX_SPDY_INVALID_STREAM 2
+#define NGX_SPDY_REFUSED_STREAM 3
+#define NGX_SPDY_UNSUPPORTED_VERSION 4
+#define NGX_SPDY_CANCEL 5
+#define NGX_SPDY_INTERNAL_ERROR 6
+#define NGX_SPDY_FLOW_CONTROL_ERROR 7
+
+#define NGX_SPDY_SETTINGS_MAX_STREAMS 4
+#define NGX_SPDY_SETTINGS_INIT_WINDOW_SIZE 7
+
+#define NGX_SPDY_SETTINGS_FLAG_PERSIST 0x01
+
+typedef struct {
+ ngx_uint_t hash;
+ u_char len;
+ u_char header[8];
+ ngx_int_t (*handler)(ngx_http_request_t *r);
+} ngx_http_spdy_request_header_t;
+
+
+static void ngx_http_spdy_read_handler(ngx_event_t *rev);
+static void ngx_http_spdy_write_handler(ngx_event_t *wev);
+static void ngx_http_spdy_handle_connection(ngx_http_spdy_connection_t *sc);
+
+static u_char *ngx_http_spdy_state_detect_settings(
+ ngx_http_spdy_connection_t *sc, u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_head(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_syn_stream(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_headers(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_window_update(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_headers_error(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_headers_skip(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_data(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_rst_stream(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_ping(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_skip(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_settings(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_complete(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end);
+static u_char *ngx_http_spdy_state_save(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end, ngx_http_spdy_handler_pt handler);
+static u_char *ngx_http_spdy_state_protocol_error(
+ ngx_http_spdy_connection_t *sc);
+static u_char *ngx_http_spdy_state_internal_error(
+ ngx_http_spdy_connection_t *sc);
+
+static ngx_int_t ngx_http_spdy_send_rst_stream(ngx_http_spdy_connection_t *sc,
+ ngx_uint_t sid, ngx_uint_t status, ngx_uint_t priority);
+static ngx_int_t ngx_http_spdy_send_settings(ngx_http_spdy_connection_t *sc);
+static ngx_int_t ngx_http_spdy_send_window_update(
+ ngx_http_spdy_connection_t *sc, ngx_http_spdy_stream_t *stream,
+ ngx_uint_t delta_window_size);
+static ngx_int_t ngx_http_spdy_settings_frame_handler(
+ ngx_http_spdy_connection_t *sc, ngx_http_spdy_out_frame_t *frame);
+static ngx_http_spdy_out_frame_t *ngx_http_spdy_get_ctl_frame(
+ ngx_http_spdy_connection_t *sc, size_t size, ngx_uint_t priority);
+static ngx_int_t ngx_http_spdy_ctl_frame_handler(
+ ngx_http_spdy_connection_t *sc, ngx_http_spdy_out_frame_t *frame);
+
+static ngx_http_spdy_stream_t *ngx_http_spdy_create_stream(
+ ngx_http_spdy_connection_t *sc, ngx_uint_t id, ngx_uint_t priority);
+static ngx_http_spdy_stream_t *ngx_http_spdy_get_stream_by_id(
+ ngx_http_spdy_connection_t *sc, ngx_uint_t sid);
+#define ngx_http_spdy_streams_index_size(sscf) (sscf->streams_index_mask + 1)
+#define ngx_http_spdy_stream_index(sscf, sid) \
+ ((sid >> 1) & sscf->streams_index_mask)
+
+static ngx_int_t ngx_http_spdy_parse_header(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_alloc_large_header_buffer(ngx_http_request_t *r);
+
+static ngx_int_t ngx_http_spdy_handle_request_header(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_method(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_scheme(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_path(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_version(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_parse_host(ngx_http_request_t *r);
+
+static ngx_int_t ngx_http_spdy_construct_request_line(ngx_http_request_t *r);
+static void ngx_http_spdy_run_request(ngx_http_request_t *r);
+static ngx_int_t ngx_http_spdy_init_request_body(ngx_http_request_t *r);
+
+static void ngx_http_spdy_handle_connection_handler(ngx_event_t *rev);
+static void ngx_http_spdy_keepalive_handler(ngx_event_t *rev);
+static void ngx_http_spdy_finalize_connection(ngx_http_spdy_connection_t *sc,
+ ngx_int_t rc);
+
+static void ngx_http_spdy_pool_cleanup(void *data);
+
+static void *ngx_http_spdy_zalloc(void *opaque, u_int items, u_int size);
+static void ngx_http_spdy_zfree(void *opaque, void *address);
+
+static const u_char ngx_http_spdy_dict[] = {
+ 0x00, 0x00, 0x00, 0x07, 0x6f, 0x70, 0x74, 0x69, // - - - - o p t i
+ 0x6f, 0x6e, 0x73, 0x00, 0x00, 0x00, 0x04, 0x68, // o n s - - - - h
+ 0x65, 0x61, 0x64, 0x00, 0x00, 0x00, 0x04, 0x70, // e a d - - - - p
+ 0x6f, 0x73, 0x74, 0x00, 0x00, 0x00, 0x03, 0x70, // o s t - - - - p
+ 0x75, 0x74, 0x00, 0x00, 0x00, 0x06, 0x64, 0x65, // u t - - - - d e
+ 0x6c, 0x65, 0x74, 0x65, 0x00, 0x00, 0x00, 0x05, // l e t e - - - -
+ 0x74, 0x72, 0x61, 0x63, 0x65, 0x00, 0x00, 0x00, // t r a c e - - -
+ 0x06, 0x61, 0x63, 0x63, 0x65, 0x70, 0x74, 0x00, // - a c c e p t -
+ 0x00, 0x00, 0x0e, 0x61, 0x63, 0x63, 0x65, 0x70, // - - - a c c e p
+ 0x74, 0x2d, 0x63, 0x68, 0x61, 0x72, 0x73, 0x65, // t - c h a r s e
+ 0x74, 0x00, 0x00, 0x00, 0x0f, 0x61, 0x63, 0x63, // t - - - - a c c
+ 0x65, 0x70, 0x74, 0x2d, 0x65, 0x6e, 0x63, 0x6f, // e p t - e n c o
+ 0x64, 0x69, 0x6e, 0x67, 0x00, 0x00, 0x00, 0x0f, // d i n g - - - -
+ 0x61, 0x63, 0x63, 0x65, 0x70, 0x74, 0x2d, 0x6c, // a c c e p t - l
+ 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x00, // a n g u a g e -
+ 0x00, 0x00, 0x0d, 0x61, 0x63, 0x63, 0x65, 0x70, // - - - a c c e p
+ 0x74, 0x2d, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x73, // t - r a n g e s
+ 0x00, 0x00, 0x00, 0x03, 0x61, 0x67, 0x65, 0x00, // - - - - a g e -
+ 0x00, 0x00, 0x05, 0x61, 0x6c, 0x6c, 0x6f, 0x77, // - - - a l l o w
+ 0x00, 0x00, 0x00, 0x0d, 0x61, 0x75, 0x74, 0x68, // - - - - a u t h
+ 0x6f, 0x72, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, // o r i z a t i o
+ 0x6e, 0x00, 0x00, 0x00, 0x0d, 0x63, 0x61, 0x63, // n - - - - c a c
+ 0x68, 0x65, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, // h e - c o n t r
+ 0x6f, 0x6c, 0x00, 0x00, 0x00, 0x0a, 0x63, 0x6f, // o l - - - - c o
+ 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, // n n e c t i o n
+ 0x00, 0x00, 0x00, 0x0c, 0x63, 0x6f, 0x6e, 0x74, // - - - - c o n t
+ 0x65, 0x6e, 0x74, 0x2d, 0x62, 0x61, 0x73, 0x65, // e n t - b a s e
+ 0x00, 0x00, 0x00, 0x10, 0x63, 0x6f, 0x6e, 0x74, // - - - - c o n t
+ 0x65, 0x6e, 0x74, 0x2d, 0x65, 0x6e, 0x63, 0x6f, // e n t - e n c o
+ 0x64, 0x69, 0x6e, 0x67, 0x00, 0x00, 0x00, 0x10, // d i n g - - - -
+ 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, // c o n t e n t -
+ 0x6c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, // l a n g u a g e
+ 0x00, 0x00, 0x00, 0x0e, 0x63, 0x6f, 0x6e, 0x74, // - - - - c o n t
+ 0x65, 0x6e, 0x74, 0x2d, 0x6c, 0x65, 0x6e, 0x67, // e n t - l e n g
+ 0x74, 0x68, 0x00, 0x00, 0x00, 0x10, 0x63, 0x6f, // t h - - - - c o
+ 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, 0x6c, 0x6f, // n t e n t - l o
+ 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, // c a t i o n - -
+ 0x00, 0x0b, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, // - - c o n t e n
+ 0x74, 0x2d, 0x6d, 0x64, 0x35, 0x00, 0x00, 0x00, // t - m d 5 - - -
+ 0x0d, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, // - c o n t e n t
+ 0x2d, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x00, 0x00, // - r a n g e - -
+ 0x00, 0x0c, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, // - - c o n t e n
+ 0x74, 0x2d, 0x74, 0x79, 0x70, 0x65, 0x00, 0x00, // t - t y p e - -
+ 0x00, 0x04, 0x64, 0x61, 0x74, 0x65, 0x00, 0x00, // - - d a t e - -
+ 0x00, 0x04, 0x65, 0x74, 0x61, 0x67, 0x00, 0x00, // - - e t a g - -
+ 0x00, 0x06, 0x65, 0x78, 0x70, 0x65, 0x63, 0x74, // - - e x p e c t
+ 0x00, 0x00, 0x00, 0x07, 0x65, 0x78, 0x70, 0x69, // - - - - e x p i
+ 0x72, 0x65, 0x73, 0x00, 0x00, 0x00, 0x04, 0x66, // r e s - - - - f
+ 0x72, 0x6f, 0x6d, 0x00, 0x00, 0x00, 0x04, 0x68, // r o m - - - - h
+ 0x6f, 0x73, 0x74, 0x00, 0x00, 0x00, 0x08, 0x69, // o s t - - - - i
+ 0x66, 0x2d, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x00, // f - m a t c h -
+ 0x00, 0x00, 0x11, 0x69, 0x66, 0x2d, 0x6d, 0x6f, // - - - i f - m o
+ 0x64, 0x69, 0x66, 0x69, 0x65, 0x64, 0x2d, 0x73, // d i f i e d - s
+ 0x69, 0x6e, 0x63, 0x65, 0x00, 0x00, 0x00, 0x0d, // i n c e - - - -
+ 0x69, 0x66, 0x2d, 0x6e, 0x6f, 0x6e, 0x65, 0x2d, // i f - n o n e -
+ 0x6d, 0x61, 0x74, 0x63, 0x68, 0x00, 0x00, 0x00, // m a t c h - - -
+ 0x08, 0x69, 0x66, 0x2d, 0x72, 0x61, 0x6e, 0x67, // - i f - r a n g
+ 0x65, 0x00, 0x00, 0x00, 0x13, 0x69, 0x66, 0x2d, // e - - - - i f -
+ 0x75, 0x6e, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x69, // u n m o d i f i
+ 0x65, 0x64, 0x2d, 0x73, 0x69, 0x6e, 0x63, 0x65, // e d - s i n c e
+ 0x00, 0x00, 0x00, 0x0d, 0x6c, 0x61, 0x73, 0x74, // - - - - l a s t
+ 0x2d, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x69, 0x65, // - m o d i f i e
+ 0x64, 0x00, 0x00, 0x00, 0x08, 0x6c, 0x6f, 0x63, // d - - - - l o c
+ 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, // a t i o n - - -
+ 0x0c, 0x6d, 0x61, 0x78, 0x2d, 0x66, 0x6f, 0x72, // - m a x - f o r
+ 0x77, 0x61, 0x72, 0x64, 0x73, 0x00, 0x00, 0x00, // w a r d s - - -
+ 0x06, 0x70, 0x72, 0x61, 0x67, 0x6d, 0x61, 0x00, // - p r a g m a -
+ 0x00, 0x00, 0x12, 0x70, 0x72, 0x6f, 0x78, 0x79, // - - - p r o x y
+ 0x2d, 0x61, 0x75, 0x74, 0x68, 0x65, 0x6e, 0x74, // - a u t h e n t
+ 0x69, 0x63, 0x61, 0x74, 0x65, 0x00, 0x00, 0x00, // i c a t e - - -
+ 0x13, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2d, 0x61, // - p r o x y - a
+ 0x75, 0x74, 0x68, 0x6f, 0x72, 0x69, 0x7a, 0x61, // u t h o r i z a
+ 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, 0x05, // t i o n - - - -
+ 0x72, 0x61, 0x6e, 0x67, 0x65, 0x00, 0x00, 0x00, // r a n g e - - -
+ 0x07, 0x72, 0x65, 0x66, 0x65, 0x72, 0x65, 0x72, // - r e f e r e r
+ 0x00, 0x00, 0x00, 0x0b, 0x72, 0x65, 0x74, 0x72, // - - - - r e t r
+ 0x79, 0x2d, 0x61, 0x66, 0x74, 0x65, 0x72, 0x00, // y - a f t e r -
+ 0x00, 0x00, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, // - - - s e r v e
+ 0x72, 0x00, 0x00, 0x00, 0x02, 0x74, 0x65, 0x00, // r - - - - t e -
+ 0x00, 0x00, 0x07, 0x74, 0x72, 0x61, 0x69, 0x6c, // - - - t r a i l
+ 0x65, 0x72, 0x00, 0x00, 0x00, 0x11, 0x74, 0x72, // e r - - - - t r
+ 0x61, 0x6e, 0x73, 0x66, 0x65, 0x72, 0x2d, 0x65, // a n s f e r - e
+ 0x6e, 0x63, 0x6f, 0x64, 0x69, 0x6e, 0x67, 0x00, // n c o d i n g -
+ 0x00, 0x00, 0x07, 0x75, 0x70, 0x67, 0x72, 0x61, // - - - u p g r a
+ 0x64, 0x65, 0x00, 0x00, 0x00, 0x0a, 0x75, 0x73, // d e - - - - u s
+ 0x65, 0x72, 0x2d, 0x61, 0x67, 0x65, 0x6e, 0x74, // e r - a g e n t
+ 0x00, 0x00, 0x00, 0x04, 0x76, 0x61, 0x72, 0x79, // - - - - v a r y
+ 0x00, 0x00, 0x00, 0x03, 0x76, 0x69, 0x61, 0x00, // - - - - v i a -
+ 0x00, 0x00, 0x07, 0x77, 0x61, 0x72, 0x6e, 0x69, // - - - w a r n i
+ 0x6e, 0x67, 0x00, 0x00, 0x00, 0x10, 0x77, 0x77, // n g - - - - w w
+ 0x77, 0x2d, 0x61, 0x75, 0x74, 0x68, 0x65, 0x6e, // w - a u t h e n
+ 0x74, 0x69, 0x63, 0x61, 0x74, 0x65, 0x00, 0x00, // t i c a t e - -
+ 0x00, 0x06, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, // - - m e t h o d
+ 0x00, 0x00, 0x00, 0x03, 0x67, 0x65, 0x74, 0x00, // - - - - g e t -
+ 0x00, 0x00, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, // - - - s t a t u
+ 0x73, 0x00, 0x00, 0x00, 0x06, 0x32, 0x30, 0x30, // s - - - - 2 0 0
+ 0x20, 0x4f, 0x4b, 0x00, 0x00, 0x00, 0x07, 0x76, // - O K - - - - v
+ 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x00, 0x00, // e r s i o n - -
+ 0x00, 0x08, 0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, // - - H T T P - 1
+ 0x2e, 0x31, 0x00, 0x00, 0x00, 0x03, 0x75, 0x72, // - 1 - - - - u r
+ 0x6c, 0x00, 0x00, 0x00, 0x06, 0x70, 0x75, 0x62, // l - - - - p u b
+ 0x6c, 0x69, 0x63, 0x00, 0x00, 0x00, 0x0a, 0x73, // l i c - - - - s
+ 0x65, 0x74, 0x2d, 0x63, 0x6f, 0x6f, 0x6b, 0x69, // e t - c o o k i
+ 0x65, 0x00, 0x00, 0x00, 0x0a, 0x6b, 0x65, 0x65, // e - - - - k e e
+ 0x70, 0x2d, 0x61, 0x6c, 0x69, 0x76, 0x65, 0x00, // p - a l i v e -
+ 0x00, 0x00, 0x06, 0x6f, 0x72, 0x69, 0x67, 0x69, // - - - o r i g i
+ 0x6e, 0x31, 0x30, 0x30, 0x31, 0x30, 0x31, 0x32, // n 1 0 0 1 0 1 2
+ 0x30, 0x31, 0x32, 0x30, 0x32, 0x32, 0x30, 0x35, // 0 1 2 0 2 2 0 5
+ 0x32, 0x30, 0x36, 0x33, 0x30, 0x30, 0x33, 0x30, // 2 0 6 3 0 0 3 0
+ 0x32, 0x33, 0x30, 0x33, 0x33, 0x30, 0x34, 0x33, // 2 3 0 3 3 0 4 3
+ 0x30, 0x35, 0x33, 0x30, 0x36, 0x33, 0x30, 0x37, // 0 5 3 0 6 3 0 7
+ 0x34, 0x30, 0x32, 0x34, 0x30, 0x35, 0x34, 0x30, // 4 0 2 4 0 5 4 0
+ 0x36, 0x34, 0x30, 0x37, 0x34, 0x30, 0x38, 0x34, // 6 4 0 7 4 0 8 4
+ 0x30, 0x39, 0x34, 0x31, 0x30, 0x34, 0x31, 0x31, // 0 9 4 1 0 4 1 1
+ 0x34, 0x31, 0x32, 0x34, 0x31, 0x33, 0x34, 0x31, // 4 1 2 4 1 3 4 1
+ 0x34, 0x34, 0x31, 0x35, 0x34, 0x31, 0x36, 0x34, // 4 4 1 5 4 1 6 4
+ 0x31, 0x37, 0x35, 0x30, 0x32, 0x35, 0x30, 0x34, // 1 7 5 0 2 5 0 4
+ 0x35, 0x30, 0x35, 0x32, 0x30, 0x33, 0x20, 0x4e, // 5 0 5 2 0 3 - N
+ 0x6f, 0x6e, 0x2d, 0x41, 0x75, 0x74, 0x68, 0x6f, // o n - A u t h o
+ 0x72, 0x69, 0x74, 0x61, 0x74, 0x69, 0x76, 0x65, // r i t a t i v e
+ 0x20, 0x49, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, // - I n f o r m a
+ 0x74, 0x69, 0x6f, 0x6e, 0x32, 0x30, 0x34, 0x20, // t i o n 2 0 4 -
+ 0x4e, 0x6f, 0x20, 0x43, 0x6f, 0x6e, 0x74, 0x65, // N o - C o n t e
+ 0x6e, 0x74, 0x33, 0x30, 0x31, 0x20, 0x4d, 0x6f, // n t 3 0 1 - M o
+ 0x76, 0x65, 0x64, 0x20, 0x50, 0x65, 0x72, 0x6d, // v e d - P e r m
+ 0x61, 0x6e, 0x65, 0x6e, 0x74, 0x6c, 0x79, 0x34, // a n e n t l y 4
+ 0x30, 0x30, 0x20, 0x42, 0x61, 0x64, 0x20, 0x52, // 0 0 - B a d - R
+ 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x34, 0x30, // e q u e s t 4 0
+ 0x31, 0x20, 0x55, 0x6e, 0x61, 0x75, 0x74, 0x68, // 1 - U n a u t h
+ 0x6f, 0x72, 0x69, 0x7a, 0x65, 0x64, 0x34, 0x30, // o r i z e d 4 0
+ 0x33, 0x20, 0x46, 0x6f, 0x72, 0x62, 0x69, 0x64, // 3 - F o r b i d
+ 0x64, 0x65, 0x6e, 0x34, 0x30, 0x34, 0x20, 0x4e, // d e n 4 0 4 - N
+ 0x6f, 0x74, 0x20, 0x46, 0x6f, 0x75, 0x6e, 0x64, // o t - F o u n d
+ 0x35, 0x30, 0x30, 0x20, 0x49, 0x6e, 0x74, 0x65, // 5 0 0 - I n t e
+ 0x72, 0x6e, 0x61, 0x6c, 0x20, 0x53, 0x65, 0x72, // r n a l - S e r
+ 0x76, 0x65, 0x72, 0x20, 0x45, 0x72, 0x72, 0x6f, // v e r - E r r o
+ 0x72, 0x35, 0x30, 0x31, 0x20, 0x4e, 0x6f, 0x74, // r 5 0 1 - N o t
+ 0x20, 0x49, 0x6d, 0x70, 0x6c, 0x65, 0x6d, 0x65, // - I m p l e m e
+ 0x6e, 0x74, 0x65, 0x64, 0x35, 0x30, 0x33, 0x20, // n t e d 5 0 3 -
+ 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x20, // S e r v i c e -
+ 0x55, 0x6e, 0x61, 0x76, 0x61, 0x69, 0x6c, 0x61, // U n a v a i l a
+ 0x62, 0x6c, 0x65, 0x4a, 0x61, 0x6e, 0x20, 0x46, // b l e J a n - F
+ 0x65, 0x62, 0x20, 0x4d, 0x61, 0x72, 0x20, 0x41, // e b - M a r - A
+ 0x70, 0x72, 0x20, 0x4d, 0x61, 0x79, 0x20, 0x4a, // p r - M a y - J
+ 0x75, 0x6e, 0x20, 0x4a, 0x75, 0x6c, 0x20, 0x41, // u n - J u l - A
+ 0x75, 0x67, 0x20, 0x53, 0x65, 0x70, 0x74, 0x20, // u g - S e p t -
+ 0x4f, 0x63, 0x74, 0x20, 0x4e, 0x6f, 0x76, 0x20, // O c t - N o v -
+ 0x44, 0x65, 0x63, 0x20, 0x30, 0x30, 0x3a, 0x30, // D e c - 0 0 - 0
+ 0x30, 0x3a, 0x30, 0x30, 0x20, 0x4d, 0x6f, 0x6e, // 0 - 0 0 - M o n
+ 0x2c, 0x20, 0x54, 0x75, 0x65, 0x2c, 0x20, 0x57, // - - T u e - - W
+ 0x65, 0x64, 0x2c, 0x20, 0x54, 0x68, 0x75, 0x2c, // e d - - T h u -
+ 0x20, 0x46, 0x72, 0x69, 0x2c, 0x20, 0x53, 0x61, // - F r i - - S a
+ 0x74, 0x2c, 0x20, 0x53, 0x75, 0x6e, 0x2c, 0x20, // t - - S u n - -
+ 0x47, 0x4d, 0x54, 0x63, 0x68, 0x75, 0x6e, 0x6b, // G M T c h u n k
+ 0x65, 0x64, 0x2c, 0x74, 0x65, 0x78, 0x74, 0x2f, // e d - t e x t -
+ 0x68, 0x74, 0x6d, 0x6c, 0x2c, 0x69, 0x6d, 0x61, // h t m l - i m a
+ 0x67, 0x65, 0x2f, 0x70, 0x6e, 0x67, 0x2c, 0x69, // g e - p n g - i
+ 0x6d, 0x61, 0x67, 0x65, 0x2f, 0x6a, 0x70, 0x67, // m a g e - j p g
+ 0x2c, 0x69, 0x6d, 0x61, 0x67, 0x65, 0x2f, 0x67, // - i m a g e - g
+ 0x69, 0x66, 0x2c, 0x61, 0x70, 0x70, 0x6c, 0x69, // i f - a p p l i
+ 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x78, // c a t i o n - x
+ 0x6d, 0x6c, 0x2c, 0x61, 0x70, 0x70, 0x6c, 0x69, // m l - a p p l i
+ 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x78, // c a t i o n - x
+ 0x68, 0x74, 0x6d, 0x6c, 0x2b, 0x78, 0x6d, 0x6c, // h t m l - x m l
+ 0x2c, 0x74, 0x65, 0x78, 0x74, 0x2f, 0x70, 0x6c, // - t e x t - p l
+ 0x61, 0x69, 0x6e, 0x2c, 0x74, 0x65, 0x78, 0x74, // a i n - t e x t
+ 0x2f, 0x6a, 0x61, 0x76, 0x61, 0x73, 0x63, 0x72, // - j a v a s c r
+ 0x69, 0x70, 0x74, 0x2c, 0x70, 0x75, 0x62, 0x6c, // i p t - p u b l
+ 0x69, 0x63, 0x70, 0x72, 0x69, 0x76, 0x61, 0x74, // i c p r i v a t
+ 0x65, 0x6d, 0x61, 0x78, 0x2d, 0x61, 0x67, 0x65, // e m a x - a g e
+ 0x3d, 0x67, 0x7a, 0x69, 0x70, 0x2c, 0x64, 0x65, // - g z i p - d e
+ 0x66, 0x6c, 0x61, 0x74, 0x65, 0x2c, 0x73, 0x64, // f l a t e - s d
+ 0x63, 0x68, 0x63, 0x68, 0x61, 0x72, 0x73, 0x65, // c h c h a r s e
+ 0x74, 0x3d, 0x75, 0x74, 0x66, 0x2d, 0x38, 0x63, // t - u t f - 8 c
+ 0x68, 0x61, 0x72, 0x73, 0x65, 0x74, 0x3d, 0x69, // h a r s e t - i
+ 0x73, 0x6f, 0x2d, 0x38, 0x38, 0x35, 0x39, 0x2d, // s o - 8 8 5 9 -
+ 0x31, 0x2c, 0x75, 0x74, 0x66, 0x2d, 0x2c, 0x2a, // 1 - u t f - - -
+ 0x2c, 0x65, 0x6e, 0x71, 0x3d, 0x30, 0x2e // - e n q - 0 -
+};
+
+static ngx_http_spdy_request_header_t ngx_http_spdy_request_headers[] = {
+ { 0, 7, ":method", ngx_http_spdy_parse_method },
+ { 0, 7, ":scheme", ngx_http_spdy_parse_scheme },
+ { 0, 5, ":path", ngx_http_spdy_parse_path },
+ { 0, 8, ":version", ngx_http_spdy_parse_version },
+ { 0, 5, ":host", ngx_http_spdy_parse_host },
+};
+
+#define NGX_SPDY_REQUEST_HEADERS \
+ (sizeof(ngx_http_spdy_request_headers) \
+ / sizeof(ngx_http_spdy_request_header_t))
+
+
+void
+ngx_http_spdy_v3_init(ngx_event_t *rev)
+{
+ int rc;
+ ngx_connection_t *c;
+ ngx_pool_cleanup_t *cln;
+ ngx_http_connection_t *hc;
+ ngx_http_spdy_srv_conf_t *sscf;
+ ngx_http_spdy_main_conf_t *smcf;
+ ngx_http_spdy_connection_t *sc;
+
+ c = rev->data;
+ hc = c->data;
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "init spdy request");
+
+ c->log->action = "processing SPDY";
+
+ smcf = ngx_http_get_module_main_conf(hc->conf_ctx, ngx_http_spdy_module);
+
+ if (smcf->recv_buffer == NULL) {
+ smcf->recv_buffer = ngx_palloc(ngx_cycle->pool, smcf->recv_buffer_size);
+ if (smcf->recv_buffer == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+ }
+
+ sc = ngx_pcalloc(c->pool, sizeof(ngx_http_spdy_connection_t));
+ if (sc == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ sc->connection = c;
+ sc->http_connection = hc;
+ sc->version = NGX_SPDY_VERSION_V3;
+
+ sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_spdy_module);
+
+ if (sscf->flow_control) {
+ sc->init_send_window_size = NGX_SPDY_INIT_SEND_WINDOW_SIZE;
+ sc->init_recv_window_size = sscf->init_recv_window_size;
+ } else {
+ sc->init_send_window_size = NGX_SPDY_TMP_WINDOW_SIZE;
+ sc->init_recv_window_size = NGX_SPDY_TMP_WINDOW_SIZE;
+ }
+
+ sc->handler = ngx_http_spdy_state_detect_settings;
+
+ sc->zstream_in.zalloc = ngx_http_spdy_zalloc;
+ sc->zstream_in.zfree = ngx_http_spdy_zfree;
+ sc->zstream_in.opaque = sc;
+
+ rc = inflateInit(&sc->zstream_in);
+ if (rc != Z_OK) {
+ ngx_log_error(NGX_LOG_ALERT, c->log, 0,
+ "inflateInit() failed: %d", rc);
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ sc->zstream_out.zalloc = ngx_http_spdy_zalloc;
+ sc->zstream_out.zfree = ngx_http_spdy_zfree;
+ sc->zstream_out.opaque = sc;
+
+ rc = deflateInit2(&sc->zstream_out, (int) sscf->headers_comp,
+ Z_DEFLATED, 11, 4, Z_DEFAULT_STRATEGY);
+
+ if (rc != Z_OK) {
+ ngx_log_error(NGX_LOG_ALERT, c->log, 0,
+ "deflateInit2() failed: %d", rc);
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ rc = deflateSetDictionary(&sc->zstream_out, ngx_http_spdy_dict,
+ sizeof(ngx_http_spdy_dict));
+ if (rc != Z_OK) {
+ ngx_log_error(NGX_LOG_ALERT, c->log, 0,
+ "deflateSetDictionary() failed: %d", rc);
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ sc->pool = ngx_create_pool(sscf->pool_size, sc->connection->log);
+ if (sc->pool == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_pool_cleanup_file_t));
+ if (cln == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ cln->handler = ngx_http_spdy_pool_cleanup;
+ cln->data = sc;
+
+ sc->streams_index = ngx_pcalloc(sc->pool,
+ ngx_http_spdy_streams_index_size(sscf)
+ * sizeof(ngx_http_spdy_stream_t *));
+ if (sc->streams_index == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ c->data = sc;
+
+ rev->handler = ngx_http_spdy_read_handler;
+ c->write->handler = ngx_http_spdy_write_handler;
+
+ ngx_http_spdy_read_handler(rev);
+}
+
+
+static void
+ngx_http_spdy_read_handler(ngx_event_t *rev)
+{
+ u_char *p, *end;
+ size_t available;
+ ssize_t n;
+ ngx_connection_t *c;
+ ngx_http_spdy_main_conf_t *smcf;
+ ngx_http_spdy_connection_t *sc;
+
+ c = rev->data;
+ sc = c->data;
+
+ if (rev->timedout) {
+ ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
+ ngx_http_spdy_finalize_connection(sc, NGX_HTTP_REQUEST_TIME_OUT);
+ return;
+ }
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "spdy read handler");
+
+ sc->blocked = 1;
+
+ smcf = ngx_http_get_module_main_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ available = smcf->recv_buffer_size - 2 * NGX_SPDY_STATE_BUFFER_SIZE;
+
+ do {
+ p = smcf->recv_buffer;
+
+ ngx_memcpy(p, sc->buffer, NGX_SPDY_STATE_BUFFER_SIZE);
+ end = p + sc->buffer_used;
+
+ n = c->recv(c, end, available);
+
+ if (n == NGX_AGAIN) {
+ break;
+ }
+
+ if (n == 0 && (sc->waiting || sc->processing)) {
+ ngx_log_error(NGX_LOG_INFO, c->log, 0,
+ "client closed prematurely connection");
+ }
+
+ if (n == 0 || n == NGX_ERROR) {
+ ngx_http_spdy_finalize_connection(sc,
+ NGX_HTTP_CLIENT_CLOSED_REQUEST);
+ return;
+ }
+
+ end += n;
+
+ sc->buffer_used = 0;
+ sc->waiting = 0;
+
+ do {
+ p = sc->handler(sc, p, end);
+
+ if (p == NULL) {
+ return;
+ }
+
+ } while (p != end);
+
+ } while (rev->ready);
+
+ if (ngx_handle_read_event(rev, 0) != NGX_OK) {
+ ngx_http_spdy_finalize_connection(sc, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return;
+ }
+
+ sc->blocked = 0;
+
+ if (sc->processing) {
+ if (rev->timer_set) {
+ ngx_del_timer(rev);
+ }
+ return;
+ }
+
+ ngx_http_spdy_handle_connection(sc);
+}
+
+
+static void
+ngx_http_spdy_write_handler(ngx_event_t *wev)
+{
+ ngx_int_t rc;
+ ngx_connection_t *c;
+ ngx_http_spdy_stream_t *stream, *s, *sn;
+ ngx_http_spdy_connection_t *sc;
+
+ c = wev->data;
+ sc = c->data;
+
+ if (wev->timedout) {
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "spdy write event timed out");
+ ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
+ return;
+ }
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "spdy write handler");
+
+ sc->blocked = 2;
+
+ rc = ngx_http_spdy_send_output_queue(sc);
+
+ if (rc == NGX_ERROR) {
+ ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
+ return;
+ }
+
+ stream = NULL;
+
+ for (s = sc->last_stream; s; s = sn) {
+ sn = s->next;
+ s->next = stream;
+ stream = s;
+ }
+
+ sc->last_stream = NULL;
+
+ sc->blocked = 1;
+
+ for ( /* void */ ; stream; stream = sn) {
+ sn = stream->next;
+ stream->handled = 0;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "spdy run stream %ui", stream->id);
+
+ wev = stream->request->connection->write;
+ wev->handler(wev);
+ }
+
+ sc->blocked = 0;
+
+ if (rc == NGX_AGAIN) {
+ return;
+ }
+
+ ngx_http_spdy_handle_connection(sc);
+}
+
+
+#if 0
+ngx_int_t
+ngx_http_spdy_send_output_queue(ngx_http_spdy_connection_t *sc)
+{
+ ngx_chain_t *cl;
+ ngx_event_t *wev;
+ ngx_connection_t *c;
+ ngx_http_core_loc_conf_t *clcf;
+ ngx_http_spdy_out_frame_t *out, *frame, *fn;
+
+ c = sc->connection;
+
+ if (c->error) {
+ return NGX_ERROR;
+ }
+
+ wev = c->write;
+
+ if (!wev->ready) {
+ return NGX_OK;
+ }
+
+ cl = NULL;
+ out = NULL;
+
+ for (frame = sc->last_out; frame; frame = fn) {
+ frame->last->next = cl;
+ cl = frame->first;
+
+ fn = frame->next;
+ frame->next = out;
+ out = frame;
+
+ ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "spdy frame out: %p sid:%ui prio:%ui bl:%ui size:%uz",
+ out, out->stream ? out->stream->id : 0, out->priority,
+ out->blocked, out->size);
+ }
+
+ cl = c->send_chain(c, cl, 0);
+
+ if (cl == NGX_CHAIN_ERROR) {
+ c->error = 1;
+
+ if (!sc->blocked) {
+ ngx_post_event(wev, &ngx_posted_events);
+ }
+
+ return NGX_ERROR;
+ }
+
+ clcf = ngx_http_get_module_loc_conf(sc->http_connection->conf_ctx,
+ ngx_http_core_module);
+
+ if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
+ return NGX_ERROR; /* FIXME */
+ }
+
+ if (cl) {
+ ngx_add_timer(wev, clcf->send_timeout);
+
+ } else {
+ if (wev->timer_set) {
+ ngx_del_timer(wev);
+ }
+ }
+
+ for ( /* void */ ; out; out = out->next) {
+ if (out->handler(sc, out) != NGX_OK) {
+ out->blocked = 1;
+ out->priority = NGX_SPDY_V3_HIGHEST_PRIORITY;
+ break;
+ }
+
+ ngx_log_debug4(NGX_LOG_DEBUG_HTTP, c->log, 0,
+ "spdy frame sent: %p sid:%ui bl:%ui size:%uz",
+ out, out->stream ? out->stream->id : 0,
+ out->blocked, out->size);
+ }
+
+ frame = NULL;
+
+ for ( /* void */ ; out; out = fn) {
+ fn = out->next;
+ out->next = frame;
+ frame = out;
+ }
+
+ sc->last_out = frame;
+
+ return NGX_OK;
+}
+#endif
+
+
+static void
+ngx_http_spdy_handle_connection(ngx_http_spdy_connection_t *sc)
+{
+ ngx_connection_t *c;
+ ngx_http_spdy_srv_conf_t *sscf;
+
+ if (sc->last_out || sc->processing) {
+ return;
+ }
+
+ c = sc->connection;
+
+ if (c->error) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ if (c->buffered) {
+ return;
+ }
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+ if (sc->waiting) {
+ ngx_add_timer(c->read, sscf->recv_timeout);
+ return;
+ }
+
+ if (ngx_terminate || ngx_exiting) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ ngx_destroy_pool(sc->pool);
+
+ sc->pool = NULL;
+ sc->free_ctl_frames = NULL;
+ sc->free_fake_connections = NULL;
+
+#if (NGX_HTTP_SSL)
+ if (c->ssl) {
+ ngx_ssl_free_buffer(c);
+ }
+#endif
+
+ c->destroyed = 1;
+ c->idle = 1;
+ ngx_reusable_connection(c, 1);
+
+ c->write->handler = ngx_http_empty_handler;
+ c->read->handler = ngx_http_spdy_keepalive_handler;
+
+ if (c->write->timer_set) {
+ ngx_del_timer(c->write);
+ }
+
+ ngx_add_timer(c->read, sscf->keepalive_timeout);
+}
+
+
+static u_char *
+ngx_http_spdy_state_detect_settings(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end)
+{
+ if (end - pos < NGX_SPDY_FRAME_HEADER_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_detect_settings);
+ }
+
+ /*
+ * Since this is the first frame in a buffer,
+ * then it is properly aligned
+ */
+
+ if (*(uint32_t *) pos == htonl(ngx_spdy_v3_ctl_frame_head(NGX_SPDY_SETTINGS)))
+ {
+ sc->length = ngx_spdy_frame_length(htonl(((uint32_t *) pos)[1]));
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy SETTINGS frame received, size: %uz", sc->length);
+
+ pos += NGX_SPDY_FRAME_HEADER_SIZE;
+
+ sc->need_settings = (sc->init_recv_window_size
+ == NGX_SPDY_INIT_RECV_WINDOW_SIZE) ? 0 : 1;
+
+ return ngx_http_spdy_state_settings(sc, pos, end);
+ }
+
+ ngx_http_spdy_send_settings(sc);
+
+ return ngx_http_spdy_state_head(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_head(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ uint32_t head, flen;
+
+ if (end - pos < NGX_SPDY_FRAME_HEADER_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_head);
+ }
+
+ head = ngx_spdy_frame_parse_uint32(pos);
+
+ pos += sizeof(uint32_t);
+
+ flen = ngx_spdy_frame_parse_uint32(pos);
+
+ sc->flags = ngx_spdy_frame_flags(flen);
+ sc->length = ngx_spdy_frame_length(flen);
+
+ pos += sizeof(uint32_t);
+
+ ngx_log_debug3(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy process frame head:%08Xd f:%ui l:%ui",
+ head, sc->flags, sc->length);
+
+ if (ngx_spdy_ctl_frame_check(head)) {
+ switch (ngx_spdy_ctl_frame_type(head)) {
+
+ case NGX_SPDY_SYN_STREAM:
+ return ngx_http_spdy_state_syn_stream(sc, pos, end);
+
+ case NGX_SPDY_SYN_REPLY:
+ return ngx_http_spdy_state_protocol_error(sc);
+
+ case NGX_SPDY_RST_STREAM:
+ return ngx_http_spdy_state_rst_stream(sc, pos, end);
+
+ case NGX_SPDY_SETTINGS:
+ return ngx_http_spdy_state_skip(sc, pos, end);
+
+ case NGX_SPDY_PING:
+ return ngx_http_spdy_state_ping(sc, pos, end);
+
+ case NGX_SPDY_GOAWAY:
+ return ngx_http_spdy_state_skip(sc, pos, end); /* TODO */
+
+ case NGX_SPDY_HEADERS:
+ return ngx_http_spdy_state_protocol_error(sc);
+
+ case NGX_SPDY_WINDOW_UPDATE:
+ return ngx_http_spdy_state_window_update(sc, pos, end);
+
+ default: /* TODO logging */
+ return ngx_http_spdy_state_skip(sc, pos, end);
+ }
+ }
+
+ if (ngx_spdy_data_frame_check(head)) {
+ sc->stream = ngx_http_spdy_get_stream_by_id(sc, head);
+ return ngx_http_spdy_state_data(sc, pos, end);
+ }
+
+
+ /* TODO version & type check */
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy unknown frame");
+
+ return ngx_http_spdy_state_protocol_error(sc);
+}
+
+
+static u_char *
+ngx_http_spdy_state_syn_stream(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ ngx_uint_t sid, prio;
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_spdy_srv_conf_t *sscf;
+
+ if (end - pos < NGX_SPDY_SYN_STREAM_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_syn_stream);
+ }
+
+ if (sc->length <= NGX_SPDY_SYN_STREAM_SIZE) {
+ /* TODO logging */
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ sc->length -= NGX_SPDY_SYN_STREAM_SIZE;
+
+ sid = ngx_spdy_frame_parse_sid(pos);
+ prio = pos[8] >> 5;
+
+ pos += NGX_SPDY_SYN_STREAM_SIZE;
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy SYN_STREAM frame sid:%ui prio:%ui", sid, prio);
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ if (sc->processing >= sscf->concurrent_streams) {
+
+ ngx_log_error(NGX_LOG_INFO, sc->connection->log, 0,
+ "spdy concurrent streams excessed %ui", sc->processing);
+
+ if (ngx_http_spdy_send_rst_stream(sc, sid, NGX_SPDY_REFUSED_STREAM,
+ prio)
+ != NGX_OK)
+ {
+ return ngx_http_spdy_state_internal_error(sc);
+ }
+
+ return ngx_http_spdy_state_headers_skip(sc, pos, end);
+ }
+
+ stream = ngx_http_spdy_create_stream(sc, sid, prio);
+ if (stream == NULL) {
+ return ngx_http_spdy_state_internal_error(sc);
+ }
+
+ stream->in_closed = (sc->flags & NGX_SPDY_FLAG_FIN) ? 1 : 0;
+
+ stream->request->request_length = NGX_SPDY_FRAME_HEADER_SIZE
+ + NGX_SPDY_SYN_STREAM_SIZE
+ + sc->length;
+
+ sc->stream = stream;
+
+ sc->last_sid = sid;
+
+ return ngx_http_spdy_state_headers(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_headers(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ int z;
+ size_t size;
+ ngx_buf_t *buf;
+ ngx_int_t rc;
+ ngx_uint_t complete;
+ ngx_http_request_t *r;
+
+ size = end - pos;
+
+ if (size == 0) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_headers);
+ }
+
+ if (size >= sc->length) {
+ size = sc->length;
+ complete = 1;
+
+ } else {
+ complete = 0;
+ }
+
+ r = sc->stream->request;
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy process HEADERS %uz of %uz", size, sc->length);
+
+ buf = r->header_in;
+
+ sc->zstream_in.next_in = pos;
+ sc->zstream_in.avail_in = size;
+ sc->zstream_in.next_out = buf->last;
+
+ /* one byte is reserved for null-termination of the last header value */
+ sc->zstream_in.avail_out = buf->end - buf->last - 1;
+
+ z = inflate(&sc->zstream_in, Z_NO_FLUSH);
+
+ if (z == Z_NEED_DICT) {
+ z = inflateSetDictionary(&sc->zstream_in, ngx_http_spdy_dict,
+ sizeof(ngx_http_spdy_dict));
+ if (z != Z_OK) {
+ ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ "spdy inflateSetDictionary() failed: %d", z);
+ ngx_http_spdy_close_stream(sc->stream, 0);
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy inflateSetDictionary(): %d", z);
+
+ z = sc->zstream_in.avail_in ? inflate(&sc->zstream_in, Z_NO_FLUSH)
+ : Z_OK;
+ }
+
+ if (z != Z_OK) {
+ ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ "spdy inflate() failed: %d", z);
+ ngx_http_spdy_close_stream(sc->stream, 0);
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ ngx_log_debug5(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy inflate out: ni:%p no:%p ai:%ud ao:%ud rc:%d",
+ sc->zstream_in.next_in, sc->zstream_in.next_out,
+ sc->zstream_in.avail_in, sc->zstream_in.avail_out,
+ z);
+
+ sc->length -= sc->zstream_in.next_in - pos;
+ pos = sc->zstream_in.next_in;
+
+ buf->last = sc->zstream_in.next_out;
+
+ if (r->headers_in.headers.part.elts == NULL) {
+
+ if (buf->last - buf->pos < NGX_SPDY_V3_NV_NUM_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_headers);
+ }
+
+ sc->headers = ngx_spdy_frame_parse_uint32(buf->pos);
+
+ buf->pos += NGX_SPDY_V3_NV_NUM_SIZE;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy headers count: %ui", sc->headers);
+
+ if (ngx_list_init(&r->headers_in.headers, r->pool, sc->headers + 3,
+ sizeof(ngx_table_elt_t))
+ != NGX_OK)
+ {
+ ngx_http_spdy_close_stream(sc->stream,
+ NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return ngx_http_spdy_state_headers_error(sc, pos, end);
+ }
+
+ if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
+ sizeof(ngx_table_elt_t *))
+ != NGX_OK)
+ {
+ ngx_http_spdy_close_stream(sc->stream,
+ NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return ngx_http_spdy_state_headers_error(sc, pos, end);
+ }
+ }
+
+ while (sc->headers) {
+
+ rc = ngx_http_spdy_parse_header(r);
+
+ switch (rc) {
+
+ case NGX_DONE:
+ sc->headers--;
+
+ case NGX_OK:
+ break;
+
+ case NGX_AGAIN:
+
+ if (sc->zstream_in.avail_in) {
+
+ rc = ngx_http_spdy_alloc_large_header_buffer(r);
+
+ if (rc == NGX_DECLINED) {
+ /* TODO logging */
+ ngx_http_finalize_request(r,
+ NGX_HTTP_REQUEST_HEADER_TOO_LARGE);
+ return ngx_http_spdy_state_headers_error(sc, pos, end);
+ }
+
+ if (rc != NGX_OK) {
+ ngx_http_spdy_close_stream(sc->stream,
+ NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return ngx_http_spdy_state_headers_error(sc, pos, end);
+ }
+
+ /* null-terminate the last processed header name or value */
+ *buf->pos = '\0';
+
+ buf = r->header_in;
+
+ sc->zstream_in.next_out = buf->last;
+
+ /* one byte is reserved for null-termination */
+ sc->zstream_in.avail_out = buf->end - buf->last - 1;
+
+ z = inflate(&sc->zstream_in, Z_NO_FLUSH);
+
+ if (z != Z_OK) {
+ ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ "spdy inflate() failed: %d", z);
+ ngx_http_spdy_close_stream(sc->stream, 0);
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ sc->length -= sc->zstream_in.next_in - pos;
+ pos = sc->zstream_in.next_in;
+
+ buf->last = sc->zstream_in.next_out;
+
+ continue;
+ }
+
+ if (complete) {
+ /* TODO: improve error message */
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy again while last chunk");
+ ngx_http_spdy_close_stream(sc->stream, 0);
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_headers);
+
+ case NGX_HTTP_PARSE_INVALID_REQUEST:
+
+ /* TODO: improve error message */
+ ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ "client sent invalid header line");
+
+ ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+
+ return ngx_http_spdy_state_headers_error(sc, pos, end);
+
+ default: /* NGX_HTTP_PARSE_INVALID_HEADER */
+
+ ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ "client sent invalid HEADERS spdy frame");
+ ngx_http_spdy_close_stream(sc->stream, NGX_HTTP_BAD_REQUEST);
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ /* a header line has been parsed successfully */
+
+ rc = ngx_http_spdy_handle_request_header(r);
+
+ if (rc != NGX_OK) {
+ if (rc == NGX_HTTP_PARSE_INVALID_HEADER) {
+ ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ "client sent invalid HEADERS spdy frame");
+ ngx_http_spdy_close_stream(sc->stream, NGX_HTTP_BAD_REQUEST);
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
+ ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+ }
+
+ return ngx_http_spdy_state_headers_error(sc, pos, end);
+ }
+ }
+
+ if (buf->pos != buf->last) {
+ /* TODO: improve error message */
+ ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "end %ui %p %p", complete, buf->pos, buf->last);
+ ngx_http_spdy_close_stream(sc->stream, NGX_HTTP_BAD_REQUEST);
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ if (!complete) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_headers);
+ }
+
+ /* null-terminate the last header value */
+ *buf->pos = '\0';
+
+ ngx_http_spdy_run_request(r);
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_window_update(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end)
+{
+ ngx_uint_t sid, delta_window_size;
+ ngx_event_t *wev, *rev;
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_spdy_srv_conf_t *sscf;
+
+ if (end - pos < NGX_SPDY_WINDOW_UPDATE_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_window_update);
+ }
+
+ if (sc->length != NGX_SPDY_WINDOW_UPDATE_SIZE) {
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ sid = ngx_spdy_frame_parse_sid(pos);
+
+ pos += NGX_SPDY_SID_SIZE;
+
+ delta_window_size = ngx_spdy_frame_parse_delta_window_size(pos);
+
+ pos += NGX_SPDY_DELTA_WINDOW_SIZE_SIZE;
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy WINDOW_UPDATE sid:%ui delta_window_size:%ui",
+ sid, delta_window_size);
+
+ stream = ngx_http_spdy_get_stream_by_id(sc, sid);
+
+ if (stream == NULL) {
+ return ngx_http_spdy_state_complete(sc, pos, end);
+ }
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ if (sscf->flow_control) {
+
+ stream->send_window_size += (ngx_int_t) delta_window_size;
+
+ /* int overflow */
+ if (stream->send_window_size < 0) {
+ if (ngx_http_spdy_send_rst_stream(sc, sid, NGX_SPDY_FLOW_CONTROL_ERROR,
+ stream->priority)
+ != NGX_OK)
+ {
+ return ngx_http_spdy_state_internal_error(sc);
+ }
+
+ stream->in_closed = 1;
+ stream->out_closed = 1;
+
+ stream->request->connection->error = 1;
+
+ rev = stream->request->connection->read;
+ rev->handler(rev);
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+ }
+
+ } else {
+ stream->send_window_size = NGX_SPDY_TMP_WINDOW_SIZE;
+ }
+
+ if (stream->pending) {
+ wev = stream->request->connection->write;
+ wev->handler(wev);
+ }
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_headers_error(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ if (sc->connection->error) {
+ return ngx_http_spdy_state_internal_error(sc);
+ }
+
+ return ngx_http_spdy_state_headers_skip(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_headers_skip(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ int n;
+ size_t size;
+ u_char buffer[NGX_SPDY_SKIP_HEADERS_BUFFER_SIZE];
+
+ if (sc->length == 0) {
+ return ngx_http_spdy_state_complete(sc, pos, end);
+ }
+
+ size = end - pos;
+
+ if (size == 0) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_headers_skip);
+ }
+
+ sc->zstream_in.next_in = pos;
+ sc->zstream_in.avail_in = (size < sc->length) ? size : sc->length;
+
+ while (sc->zstream_in.avail_in) {
+ sc->zstream_in.next_out = buffer;
+ sc->zstream_in.avail_out = NGX_SPDY_SKIP_HEADERS_BUFFER_SIZE;
+
+ n = inflate(&sc->zstream_in, Z_NO_FLUSH);
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy inflate(): %d", n);
+
+ if (n != Z_OK) {
+ /* TODO: logging */
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+ }
+
+ pos = sc->zstream_in.next_in;
+
+ if (size < sc->length) {
+ sc->length -= size;
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_headers_skip);
+ }
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_data(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ size_t size;
+ ssize_t n;
+ ngx_buf_t *buf;
+ ngx_int_t rc;
+ ngx_uint_t complete;
+ ngx_event_t *rev;
+ ngx_temp_file_t *tf;
+ ngx_http_request_t *r;
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_request_body_t *rb;
+ ngx_http_core_loc_conf_t *clcf;
+ ngx_http_spdy_srv_conf_t *sscf;
+
+ stream = sc->stream;
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy DATA frame");
+
+ if (stream == NULL) {
+ return ngx_http_spdy_state_skip(sc, pos, end);
+ }
+
+ if (stream->in_closed) {
+ /* TODO log */
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ if (sscf->flow_control) {
+
+ stream->recv_window_size -= (ngx_int_t) sc->length;
+
+ /* recv window over used */
+ if (stream->recv_window_size < 0) {
+ if (ngx_http_spdy_send_rst_stream(sc, stream->id, NGX_SPDY_FLOW_CONTROL_ERROR,
+ stream->priority)
+ != NGX_OK)
+ {
+ return ngx_http_spdy_state_internal_error(sc);
+ }
+
+ stream->in_closed = 1;
+ stream->out_closed = 1;
+
+ stream->request->connection->error = 1;
+
+ rev = stream->request->connection->read;
+ rev->handler(rev);
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+ }
+
+ if (stream->recv_window_size < (sc->init_recv_window_size) >> 1) {
+
+ if (ngx_http_spdy_send_window_update(sc, stream,
+ (ngx_uint_t) sc->init_recv_window_size
+ - stream->recv_window_size)
+ != NGX_OK)
+ {
+ return ngx_http_spdy_state_internal_error(sc);
+ }
+ }
+ } else {
+ stream->recv_window_size = NGX_SPDY_TMP_WINDOW_SIZE;
+ }
+
+ if (stream->skip_data) {
+
+ if (sc->flags & NGX_SPDY_FLAG_FIN) {
+ stream->in_closed = 1;
+ }
+
+ /* TODO log and accounting */
+ return ngx_http_spdy_state_skip(sc, pos, end);
+ }
+
+ size = end - pos;
+
+ if (size >= sc->length) {
+ size = sc->length;
+ complete = 1;
+
+ } else {
+ sc->length -= size;
+ complete = 0;
+ }
+
+ r = stream->request;
+
+ if (r->request_body == NULL
+ && ngx_http_spdy_init_request_body(r) != NGX_OK)
+ {
+ stream->skip_data = NGX_SPDY_DATA_INTERNAL_ERROR;
+ return ngx_http_spdy_state_skip(sc, pos, end);
+ }
+
+ rb = r->request_body;
+ tf = rb->temp_file;
+ buf = rb->buf;
+
+ if (size) {
+ rb->rest += size;
+
+ if (r->headers_in.content_length_n != -1
+ && r->headers_in.content_length_n < rb->rest)
+ {
+ /* TODO logging */
+ stream->skip_data = NGX_SPDY_DATA_ERROR;
+ goto error;
+
+ } else {
+ clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
+
+ if (clcf->client_max_body_size
+ && clcf->client_max_body_size < rb->rest)
+ {
+ ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+ "client intended to send too large chunked "
+ "body: %O bytes",
+ rb->rest);
+
+ stream->skip_data = NGX_SPDY_DATA_ERROR;
+ goto error;
+ }
+ }
+
+ if (tf) {
+ buf->start = pos;
+ buf->pos = pos;
+
+ pos += size;
+
+ buf->end = pos;
+ buf->last = pos;
+
+ n = ngx_write_chain_to_temp_file(tf, rb->bufs);
+
+ /* TODO: n == 0 or not complete and level event */
+
+ if (n == NGX_ERROR) {
+ stream->skip_data = NGX_SPDY_DATA_INTERNAL_ERROR;
+ goto error;
+ }
+
+ tf->offset += n;
+
+ } else {
+ buf->last = ngx_cpymem(buf->last, pos, size);
+ pos += size;
+ }
+
+ r->request_length += size;
+ }
+
+ if (!complete) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_data);
+ }
+
+ if (sc->flags & NGX_SPDY_FLAG_FIN) {
+
+ stream->in_closed = 1;
+
+ if (tf) {
+ ngx_memzero(buf, sizeof(ngx_buf_t));
+
+ buf->in_file = 1;
+ buf->file_last = tf->file.offset;
+ buf->file = &tf->file;
+
+ rb->buf = NULL;
+ }
+
+ if (r->headers_in.content_length_n < 0) {
+ r->headers_in.content_length_n = rb->rest;
+ }
+
+ if (rb->post_handler) {
+ r->read_event_handler = ngx_http_block_reading;
+ rb->post_handler(r);
+ }
+ }
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+
+error:
+
+ if (rb->post_handler) {
+
+ if (stream->skip_data == NGX_SPDY_DATA_ERROR) {
+ rc = (r->headers_in.content_length_n == -1)
+ ? NGX_HTTP_REQUEST_ENTITY_TOO_LARGE
+ : NGX_HTTP_BAD_REQUEST;
+
+ } else {
+ rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ ngx_http_finalize_request(r, rc);
+ }
+
+ return ngx_http_spdy_state_skip(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_rst_stream(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ ngx_uint_t sid, status;
+ ngx_event_t *ev;
+ ngx_connection_t *fc;
+ ngx_http_request_t *r;
+ ngx_http_spdy_stream_t *stream;
+
+ if (end - pos < NGX_SPDY_RST_STREAM_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_rst_stream);
+ }
+
+ if (sc->length != NGX_SPDY_RST_STREAM_SIZE) {
+ /* TODO logging */
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ sid = ngx_spdy_frame_parse_sid(pos);
+
+ pos += NGX_SPDY_SID_SIZE;
+
+ status = ngx_spdy_frame_parse_uint32(pos);
+
+ pos += sizeof(uint32_t);
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy RST_STREAM sid:%ui st:%ui", sid, status);
+
+
+ switch (status) {
+
+ case NGX_SPDY_PROTOCOL_ERROR:
+ /* TODO logging */
+ return ngx_http_spdy_state_protocol_error(sc);
+
+ case NGX_SPDY_INVALID_STREAM:
+ /* TODO */
+ break;
+
+ case NGX_SPDY_REFUSED_STREAM:
+ /* TODO */
+ break;
+
+ case NGX_SPDY_UNSUPPORTED_VERSION:
+ /* TODO logging */
+ return ngx_http_spdy_state_protocol_error(sc);
+
+ case NGX_SPDY_CANCEL:
+ case NGX_SPDY_INTERNAL_ERROR:
+ stream = ngx_http_spdy_get_stream_by_id(sc, sid);
+ if (stream == NULL) {
+ /* TODO false cancel */
+ break;
+ }
+
+ stream->in_closed = 1;
+ stream->out_closed = 1;
+
+ r = stream->request;
+
+ fc = r->connection;
+ fc->error = 1;
+
+ ev = fc->read;
+ ev->handler(ev);
+
+ break;
+
+ case NGX_SPDY_FLOW_CONTROL_ERROR:
+ /* TODO logging */
+ return ngx_http_spdy_state_protocol_error(sc);
+
+ default:
+ /* TODO */
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_ping(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ u_char *p;
+ ngx_buf_t *buf;
+ ngx_http_spdy_out_frame_t *frame;
+
+ if (end - pos < NGX_SPDY_PING_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_ping);
+ }
+
+ if (sc->length != NGX_SPDY_PING_SIZE) {
+ /* TODO logging */
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy PING frame");
+
+ frame = ngx_http_spdy_get_ctl_frame(sc, NGX_SPDY_PING_SIZE,
+ NGX_SPDY_V3_HIGHEST_PRIORITY);
+ if (frame == NULL) {
+ return ngx_http_spdy_state_internal_error(sc);
+ }
+
+ buf = frame->first->buf;
+
+ p = buf->pos;
+
+ p = ngx_spdy_v3_frame_write_head(p, NGX_SPDY_PING);
+ p = ngx_spdy_frame_write_flags_and_len(p, 0, NGX_SPDY_PING_SIZE);
+
+ p = ngx_cpymem(p, pos, NGX_SPDY_PING_SIZE);
+
+ buf->last = p;
+
+ ngx_http_spdy_queue_frame(sc, frame);
+
+ pos += NGX_SPDY_PING_SIZE;
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_skip(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ size_t size;
+
+ size = end - pos;
+
+ if (size < sc->length) {
+ sc->length -= size;
+ return ngx_http_spdy_state_save(sc, end, end,
+ ngx_http_spdy_state_skip);
+ }
+
+ return ngx_http_spdy_state_complete(sc, pos + sc->length, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_settings(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ ngx_uint_t v;
+ ngx_http_spdy_srv_conf_t *sscf;
+
+ if (sc->headers == 0) {
+
+ if (end - pos < NGX_SPDY_SETTINGS_NUM_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_settings);
+ }
+
+ sc->headers = ngx_spdy_frame_parse_uint32(pos);
+
+ pos += NGX_SPDY_SETTINGS_NUM_SIZE;
+ sc->length -= NGX_SPDY_SETTINGS_NUM_SIZE;
+
+ if (sc->length < sc->headers * NGX_SPDY_SETTINGS_PAIR_SIZE) {
+ /* TODO logging */
+ return ngx_http_spdy_state_protocol_error(sc);
+ }
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy SETTINGS frame consists of %ui entries",
+ sc->headers);
+ }
+
+ while (sc->headers) {
+ if (end - pos < NGX_SPDY_SETTINGS_PAIR_SIZE) {
+ return ngx_http_spdy_state_save(sc, pos, end,
+ ngx_http_spdy_state_settings);
+ }
+
+ sc->headers--;
+
+ switch (ngx_spdy_setting_id(htonl(((uint32_t *)pos)[0]))) {
+ case NGX_SPDY_SETTINGS_MAX_STREAMS:
+ v = ngx_spdy_frame_parse_uint32(pos + NGX_SPDY_SETTINGS_IDF_SIZE);
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ if (v != sscf->concurrent_streams) {
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy SETTING MAX STREAMS:%ui", v);
+ sc->need_settings = 1;
+ }
+ pos += NGX_SPDY_SETTINGS_PAIR_SIZE;
+ sc->length -= NGX_SPDY_SETTINGS_PAIR_SIZE;
+ break;
+ case NGX_SPDY_SETTINGS_INIT_WINDOW_SIZE:
+ v = ngx_spdy_frame_parse_uint32(pos + NGX_SPDY_SETTINGS_IDF_SIZE);
+ sc->init_send_window_size = v;
+ pos += NGX_SPDY_SETTINGS_PAIR_SIZE;
+ sc->length -= NGX_SPDY_SETTINGS_PAIR_SIZE;
+ break;
+ default:
+ pos += NGX_SPDY_SETTINGS_PAIR_SIZE;
+ sc->length -= NGX_SPDY_SETTINGS_PAIR_SIZE;
+ break;
+ }
+ }
+
+ if (sc->need_settings) {
+ ngx_http_spdy_send_settings(sc);
+ }
+
+ return ngx_http_spdy_state_complete(sc, pos, end);
+}
+
+
+static u_char *
+ngx_http_spdy_state_complete(ngx_http_spdy_connection_t *sc, u_char *pos,
+ u_char *end)
+{
+ sc->handler = ngx_http_spdy_state_head;
+ return pos;
+}
+
+
+static u_char *
+ngx_http_spdy_state_save(ngx_http_spdy_connection_t *sc,
+ u_char *pos, u_char *end, ngx_http_spdy_handler_pt handler)
+{
+#if (NGX_DEBUG)
+ if (end - pos > NGX_SPDY_STATE_BUFFER_SIZE) {
+ ngx_log_error(NGX_LOG_ALERT, sc->connection->log, 0,
+ "spdy state buffer overflow: "
+ "%i bytes required", end - pos);
+ return ngx_http_spdy_state_internal_error(sc);
+ }
+#endif
+
+ ngx_memcpy(sc->buffer, pos, NGX_SPDY_STATE_BUFFER_SIZE);
+
+ sc->buffer_used = end - pos;
+ sc->handler = handler;
+ sc->waiting = 1;
+
+ return end;
+}
+
+
+static u_char *
+ngx_http_spdy_state_protocol_error(ngx_http_spdy_connection_t *sc)
+{
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy state protocol error");
+
+ /* TODO */
+ ngx_http_spdy_finalize_connection(sc, NGX_HTTP_CLIENT_CLOSED_REQUEST);
+ return NULL;
+}
+
+
+static u_char *
+ngx_http_spdy_state_internal_error(ngx_http_spdy_connection_t *sc)
+{
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy state internal error");
+
+ /* TODO */
+ ngx_http_spdy_finalize_connection(sc, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return NULL;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_send_rst_stream(ngx_http_spdy_connection_t *sc, ngx_uint_t sid,
+ ngx_uint_t status, ngx_uint_t priority)
+{
+ u_char *p;
+ ngx_buf_t *buf;
+ ngx_http_spdy_out_frame_t *frame;
+
+ if (sc->connection->error) {
+ return NGX_OK;
+ }
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy write RST_STREAM sid:%ui st:%ui", sid, status);
+
+ frame = ngx_http_spdy_get_ctl_frame(sc, NGX_SPDY_RST_STREAM_SIZE,
+ priority);
+ if (frame == NULL) {
+ return NGX_ERROR;
+ }
+
+ buf = frame->first->buf;
+
+ p = buf->pos;
+
+ p = ngx_spdy_v3_frame_write_head(p, NGX_SPDY_RST_STREAM);
+ p = ngx_spdy_frame_write_flags_and_len(p, 0, NGX_SPDY_RST_STREAM_SIZE);
+
+ p = ngx_spdy_frame_write_sid(p, sid);
+ p = ngx_spdy_frame_aligned_write_uint32(p, status);
+
+ buf->last = p;
+
+ ngx_http_spdy_queue_frame(sc, frame);
+
+ return NGX_OK;
+}
+
+
+#if 0
+static ngx_int_t
+ngx_http_spdy_send_goaway(ngx_http_spdy_connection_t *sc)
+{
+ u_char *p;
+ ngx_buf_t *buf;
+ ngx_http_spdy_out_frame_t *frame;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy create GOAWAY sid:%ui", sc->last_sid);
+
+ frame = ngx_http_spdy_get_ctl_frame(sc, NGX_SPDY_GOAWAY_SIZE,
+ NGX_SPDY_V3_HIGHEST_PRIORITY);
+ if (frame == NULL) {
+ return NGX_ERROR;
+ }
+
+ buf = frame->first->buf;
+
+ p = buf->pos;
+
+ p = ngx_spdy_v3_frame_write_head(p, NGX_SPDY_GOAWAY);
+ p = ngx_spdy_frame_write_flags_and_len(p, 0, NGX_SPDY_GOAWAY_SIZE);
+
+ p = ngx_spdy_frame_write_sid(p, sc->last_sid);
+
+ buf->last = p;
+
+ ngx_http_spdy_queue_frame(sc, frame);
+
+ return NGX_OK;
+}
+#endif
+
+
+static ngx_int_t
+ngx_http_spdy_send_settings(ngx_http_spdy_connection_t *sc)
+{
+ u_char *p;
+ ngx_buf_t *buf;
+ ngx_pool_t *pool;
+ ngx_chain_t *cl;
+ ngx_http_spdy_srv_conf_t *sscf;
+ ngx_http_spdy_out_frame_t *frame;
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy create SETTINGS frame");
+
+ pool = sc->connection->pool;
+
+ frame = ngx_palloc(pool, sizeof(ngx_http_spdy_out_frame_t));
+ if (frame == NULL) {
+ return NGX_ERROR;
+ }
+
+ cl = ngx_alloc_chain_link(pool);
+ if (cl == NULL) {
+ return NGX_ERROR;
+ }
+
+ buf = ngx_create_temp_buf(pool, NGX_SPDY_FRAME_HEADER_SIZE
+ + NGX_SPDY_SETTINGS_NUM_SIZE
+ + NGX_SPDY_SETTINGS_PAIR_SIZE * 2);
+ if (buf == NULL) {
+ return NGX_ERROR;
+ }
+
+ buf->last_buf = 1;
+
+ cl->buf = buf;
+ cl->next = NULL;
+
+ frame->first = cl;
+ frame->last = cl;
+ frame->handler = ngx_http_spdy_settings_frame_handler;
+#if (NGX_DEBUG)
+ frame->stream = NULL;
+ frame->size = NGX_SPDY_FRAME_HEADER_SIZE
+ + NGX_SPDY_SETTINGS_NUM_SIZE
+ + NGX_SPDY_SETTINGS_PAIR_SIZE;
+#endif
+ frame->priority = NGX_SPDY_V3_HIGHEST_PRIORITY;
+ frame->blocked = 0;
+
+ p = buf->pos;
+
+ p = ngx_spdy_v3_frame_write_head(p, NGX_SPDY_SETTINGS);
+ p = ngx_spdy_frame_write_flags_and_len(p, NGX_SPDY_FLAG_CLEAR_SETTINGS,
+ NGX_SPDY_SETTINGS_NUM_SIZE
+ + NGX_SPDY_SETTINGS_PAIR_SIZE * 2);
+
+ p = ngx_spdy_frame_aligned_write_uint32(p, 2);
+ p = ngx_spdy_frame_aligned_write_uint32(p,
+ NGX_SPDY_SETTINGS_FLAG_PERSIST << 24
+ | NGX_SPDY_SETTINGS_MAX_STREAMS);
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ p = ngx_spdy_frame_aligned_write_uint32(p, sscf->concurrent_streams);
+
+ p = ngx_spdy_frame_aligned_write_uint32(p,
+ NGX_SPDY_SETTINGS_FLAG_PERSIST << 24
+ | NGX_SPDY_SETTINGS_INIT_WINDOW_SIZE);
+
+ p = ngx_spdy_frame_aligned_write_uint32(p, sc->init_recv_window_size);
+
+ buf->last = p;
+
+ ngx_http_spdy_queue_frame(sc, frame);
+
+ return ngx_http_spdy_send_output_queue(sc);
+}
+
+
+static ngx_int_t
+ngx_http_spdy_send_window_update(ngx_http_spdy_connection_t *sc,
+ ngx_http_spdy_stream_t *stream,
+ ngx_uint_t delta_window_size)
+{
+ u_char *p;
+ ngx_buf_t *buf;
+ ngx_pool_t *pool;
+ ngx_chain_t *cl;
+ ngx_http_spdy_out_frame_t *frame;
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy create WINDOW_UPDATE frame");
+
+ pool = sc->connection->pool;
+
+ frame = ngx_palloc(pool, sizeof(ngx_http_spdy_out_frame_t));
+ if (frame == NULL) {
+ return NGX_ERROR;
+ }
+
+ cl = ngx_alloc_chain_link(pool);
+ if (cl == NULL) {
+ return NGX_ERROR;
+ }
+
+ buf = ngx_create_temp_buf(pool, NGX_SPDY_FRAME_HEADER_SIZE
+ + NGX_SPDY_WINDOW_UPDATE_SIZE);
+
+ if (buf == NULL) {
+ return NGX_ERROR;
+ }
+
+ buf->last_buf = 1;
+
+ cl->buf = buf;
+ cl->next = NULL;
+
+ frame->first = cl;
+ frame->last = cl;
+ frame->handler = ngx_http_spdy_settings_frame_handler;
+#if (NGX_DEBUG)
+ frame->stream = NULL;
+ frame->size = NGX_SPDY_FRAME_HEADER_SIZE
+ + NGX_SPDY_SETTINGS_NUM_SIZE
+ + NGX_SPDY_SETTINGS_PAIR_SIZE;
+#endif
+ frame->priority = NGX_SPDY_V3_HIGHEST_PRIORITY;
+ frame->blocked = 0;
+
+ p = buf->pos;
+
+ p = ngx_spdy_v3_frame_write_head(p, NGX_SPDY_WINDOW_UPDATE);
+ p = ngx_spdy_frame_write_flags_and_len(p, 0,
+ NGX_SPDY_WINDOW_UPDATE_SIZE);
+
+ p = ngx_spdy_frame_write_sid(p, stream->id);
+
+ p = ngx_spdy_frame_write_sid(p, delta_window_size);
+
+ buf->last = p;
+
+ ngx_http_spdy_queue_frame(sc, frame);
+
+ stream->recv_window_size += (ngx_int_t) delta_window_size;
+
+ return ngx_http_spdy_send_output_queue(sc);
+}
+
+ngx_int_t
+ngx_http_spdy_settings_frame_handler(ngx_http_spdy_connection_t *sc,
+ ngx_http_spdy_out_frame_t *frame)
+{
+ ngx_buf_t *buf;
+
+ buf = frame->first->buf;
+
+ if (buf->pos != buf->last) {
+ return NGX_AGAIN;
+ }
+
+ ngx_free_chain(sc->pool, frame->first);
+
+ return NGX_OK;
+}
+
+
+static ngx_http_spdy_out_frame_t *
+ngx_http_spdy_get_ctl_frame(ngx_http_spdy_connection_t *sc, size_t size,
+ ngx_uint_t priority)
+{
+ ngx_chain_t *cl;
+ ngx_http_spdy_out_frame_t *frame;
+
+ frame = sc->free_ctl_frames;
+
+ if (frame) {
+ sc->free_ctl_frames = frame->free;
+
+ cl = frame->first;
+ cl->buf->pos = cl->buf->start;
+
+ } else {
+ frame = ngx_palloc(sc->pool, sizeof(ngx_http_spdy_out_frame_t));
+ if (frame == NULL) {
+ return NULL;
+ }
+
+ cl = ngx_alloc_chain_link(sc->pool);
+ if (cl == NULL) {
+ return NULL;
+ }
+
+ cl->buf = ngx_create_temp_buf(sc->pool,
+ NGX_SPDY_CTL_FRAME_BUFFER_SIZE);
+ if (cl->buf == NULL) {
+ return NULL;
+ }
+
+ cl->buf->last_buf = 1;
+
+ frame->first = cl;
+ frame->last = cl;
+ frame->handler = ngx_http_spdy_ctl_frame_handler;
+ }
+
+ frame->free = NULL;
+
+#if (NGX_DEBUG)
+ if (size > NGX_SPDY_CTL_FRAME_BUFFER_SIZE - NGX_SPDY_FRAME_HEADER_SIZE) {
+ ngx_log_error(NGX_LOG_ALERT, sc->pool->log, 0,
+ "requested control frame is too big: %z", size);
+ return NULL;
+ }
+
+ frame->stream = NULL;
+ frame->size = size;
+#endif
+
+ frame->priority = priority;
+ frame->blocked = 0;
+
+ return frame;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_ctl_frame_handler(ngx_http_spdy_connection_t *sc,
+ ngx_http_spdy_out_frame_t *frame)
+{
+ ngx_buf_t *buf;
+
+ buf = frame->first->buf;
+
+ if (buf->pos != buf->last) {
+ return NGX_AGAIN;
+ }
+
+ frame->free = sc->free_ctl_frames;
+ sc->free_ctl_frames = frame;
+
+ return NGX_OK;
+}
+
+
+static ngx_http_spdy_stream_t *
+ngx_http_spdy_create_stream(ngx_http_spdy_connection_t *sc, ngx_uint_t id,
+ ngx_uint_t priority)
+{
+ ngx_log_t *log;
+ ngx_uint_t index;
+ ngx_event_t *rev, *wev;
+ ngx_connection_t *fc;
+ ngx_http_log_ctx_t *ctx;
+ ngx_http_request_t *r;
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_core_srv_conf_t *cscf;
+ ngx_http_spdy_srv_conf_t *sscf;
+
+ fc = sc->free_fake_connections;
+
+ if (fc) {
+ sc->free_fake_connections = fc->data;
+
+ rev = fc->read;
+ wev = fc->write;
+ log = fc->log;
+ ctx = log->data;
+
+ } else {
+ fc = ngx_palloc(sc->pool, sizeof(ngx_connection_t));
+ if (fc == NULL) {
+ return NULL;
+ }
+
+ rev = ngx_palloc(sc->pool, sizeof(ngx_event_t));
+ if (rev == NULL) {
+ return NULL;
+ }
+
+ wev = ngx_palloc(sc->pool, sizeof(ngx_event_t));
+ if (wev == NULL) {
+ return NULL;
+ }
+
+ log = ngx_palloc(sc->pool, sizeof(ngx_log_t));
+ if (log == NULL) {
+ return NULL;
+ }
+
+ ctx = ngx_palloc(sc->pool, sizeof(ngx_http_log_ctx_t));
+ if (ctx == NULL) {
+ return NULL;
+ }
+
+ ctx->connection = fc;
+ ctx->request = NULL;
+ }
+
+ ngx_memcpy(log, sc->connection->log, sizeof(ngx_log_t));
+
+ log->data = ctx;
+
+ ngx_memzero(rev, sizeof(ngx_event_t));
+
+ rev->data = fc;
+ rev->ready = 1;
+ rev->handler = ngx_http_spdy_close_stream_handler;
+ rev->log = log;
+
+ ngx_memcpy(wev, rev, sizeof(ngx_event_t));
+
+ wev->write = 1;
+
+ ngx_memcpy(fc, sc->connection, sizeof(ngx_connection_t));
+
+ fc->data = sc->http_connection;
+ fc->read = rev;
+ fc->write = wev;
+ fc->sent = 0;
+ fc->log = log;
+ fc->buffered = 0;
+ fc->sndlowat = 1;
+ fc->tcp_nodelay = NGX_TCP_NODELAY_DISABLED;
+
+ r = ngx_http_create_request(fc);
+ if (r == NULL) {
+ return NULL;
+ }
+
+ r->valid_location = 1;
+
+ fc->data = r;
+ sc->connection->requests++;
+
+ cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
+
+ r->header_in = ngx_create_temp_buf(r->pool,
+ cscf->client_header_buffer_size);
+ if (r->header_in == NULL) {
+ ngx_http_free_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return NULL;
+ }
+
+ r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
+
+ stream = ngx_pcalloc(r->pool, sizeof(ngx_http_spdy_stream_t));
+ if (stream == NULL) {
+ ngx_http_free_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return NULL;
+ }
+
+ r->spdy_stream = stream;
+
+ stream->id = id;
+ stream->request = r;
+ stream->connection = sc;
+ stream->priority = priority;
+ stream->send_window_size = sc->init_send_window_size;
+ stream->recv_window_size = sc->init_recv_window_size;
+
+ sscf = ngx_http_get_module_srv_conf(r, ngx_http_spdy_module);
+
+ index = ngx_http_spdy_stream_index(sscf, id);
+
+ stream->index = sc->streams_index[index];
+ sc->streams_index[index] = stream;
+
+ sc->processing++;
+
+ return stream;
+}
+
+
+static ngx_http_spdy_stream_t *
+ngx_http_spdy_get_stream_by_id(ngx_http_spdy_connection_t *sc,
+ ngx_uint_t sid)
+{
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_spdy_srv_conf_t *sscf;
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ stream = sc->streams_index[ngx_http_spdy_stream_index(sscf, sid)];
+
+ while (stream) {
+ if (stream->id == sid) {
+ return stream;
+ }
+
+ stream = stream->index;
+ }
+
+ return NULL;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_parse_header(ngx_http_request_t *r)
+{
+ u_char *p, *end, ch;
+ ngx_uint_t len, hash;
+ ngx_http_core_srv_conf_t *cscf;
+
+ enum {
+ sw_name_len = 0,
+ sw_name,
+ sw_value_len,
+ sw_value
+ } state;
+
+ state = r->state;
+
+ p = r->header_in->pos;
+ end = r->header_in->last;
+
+ switch (state) {
+
+ case sw_name_len:
+
+ if (end - p < NGX_SPDY_V3_NV_NLEN_SIZE) {
+ return NGX_AGAIN;
+ }
+
+ len = ngx_spdy_frame_parse_uint32(p);
+
+ if (!len) {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ /* null-terminate the previous header value */
+ *p = '\0';
+
+ p += NGX_SPDY_V3_NV_NLEN_SIZE;
+
+ r->header_name_end = p + len;
+ r->lowcase_index = len;
+ r->invalid_header = 0;
+
+ state = sw_name;
+
+ /* fall through */
+
+ case sw_name:
+
+ if (r->header_name_end > end) {
+ break;
+ }
+
+ cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
+
+ r->header_name_start = p;
+
+ hash = 0;
+
+ for ( /* void */ ; p != r->header_name_end; p++) {
+
+ ch = *p;
+
+ hash = ngx_hash(hash, ch);
+
+ if ((ch >= 'a' && ch <= 'z')
+ || (ch == ':' && p == r->header_name_start)
+ || (ch == '-')
+ || (ch >= '0' && ch <= '9')
+ || (ch == '_' && cscf->underscores_in_headers))
+ {
+ continue;
+ }
+
+ switch (ch) {
+ case '\0':
+ case LF:
+ case CR:
+ case ':':
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ if (ch >= 'A' && ch <= 'Z') {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ r->invalid_header = 1;
+ }
+
+ r->header_hash = hash;
+
+ state = sw_value_len;
+
+ /* fall through */
+
+ case sw_value_len:
+
+ if (end - p < NGX_SPDY_V3_NV_VLEN_SIZE) {
+ break;
+ }
+
+ len = ngx_spdy_frame_parse_uint32(p);
+
+ /* null-terminate header name */
+ *p = '\0';
+
+ p += NGX_SPDY_V3_NV_VLEN_SIZE;
+
+ r->header_end = p + len;
+
+ state = sw_value;
+
+ /* fall through */
+
+ case sw_value:
+
+ if (r->header_end > end) {
+ break;
+ }
+
+ r->header_start = p;
+
+ for ( /* void */ ; p != r->header_end; p++) {
+
+ ch = *p;
+
+ if (ch == '\0') {
+
+ if (p == r->header_start) {
+ return NGX_ERROR;
+ }
+
+ r->header_size = p - r->header_start;
+ r->header_in->pos = p + 1;
+
+ return NGX_OK;
+ }
+
+ if (ch == CR || ch == LF) {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+ }
+
+ r->header_size = p - r->header_start;
+ r->header_in->pos = p;
+
+ r->state = 0;
+
+ return NGX_DONE;
+ }
+
+ r->header_in->pos = p;
+ r->state = state;
+
+ return NGX_AGAIN;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_alloc_large_header_buffer(ngx_http_request_t *r)
+{
+ u_char *old, *new;
+ size_t rest;
+ ngx_buf_t *buf;
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_core_srv_conf_t *cscf;
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy alloc large header buffer");
+
+ stream = r->spdy_stream;
+
+ cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
+
+ if (stream->header_buffers
+ == (ngx_uint_t) cscf->large_client_header_buffers.num)
+ {
+ return NGX_DECLINED;
+ }
+
+ rest = r->header_in->last - r->header_in->pos;
+
+ if (rest >= cscf->large_client_header_buffers.size) {
+ return NGX_DECLINED;
+ }
+
+ buf = ngx_create_temp_buf(r->pool, cscf->large_client_header_buffers.size);
+ if (buf == NULL) {
+ return NGX_ERROR;
+ }
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy large header alloc: %p %uz",
+ buf->pos, buf->end - buf->last);
+
+ old = r->header_in->pos;
+ new = buf->pos;
+
+ if (rest) {
+ buf->last = ngx_cpymem(new, old, rest);
+ }
+
+ if (r->header_name_end > old) {
+ r->header_name_end = new + (r->header_name_end - old);
+
+ } else if (r->header_end > old) {
+ r->header_end = new + (r->header_end - old);
+ }
+
+ r->header_in = buf;
+
+ stream->header_buffers++;
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_handle_request_header(ngx_http_request_t *r)
+{
+ ngx_uint_t i;
+ ngx_table_elt_t *h;
+ ngx_http_core_srv_conf_t *cscf;
+ ngx_http_spdy_request_header_t *sh;
+
+ if (r->invalid_header) {
+ cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
+
+ if (cscf->ignore_invalid_headers) {
+ ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ "client sent invalid header: \"%*s\"",
+ r->header_end - r->header_name_start,
+ r->header_name_start);
+ return NGX_OK;
+ }
+
+ } else {
+ for (i = 0; i < NGX_SPDY_REQUEST_HEADERS; i++) {
+ sh = &ngx_http_spdy_request_headers[i];
+
+ if (sh->hash != r->header_hash
+ || sh->len != r->lowcase_index
+ || ngx_strncmp(sh->header, r->header_name_start,
+ r->lowcase_index)
+ != 0)
+ {
+ continue;
+ }
+
+ return sh->handler(r);
+ }
+ }
+
+ if (r->header_name_start[0] == ':') {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ h = ngx_list_push(&r->headers_in.headers);
+ if (h == NULL) {
+ ngx_http_spdy_close_stream(r->spdy_stream,
+ NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return NGX_ERROR;
+ }
+
+ h->hash = r->header_hash;
+
+ h->key.len = r->lowcase_index;
+ h->key.data = r->header_name_start;
+
+ h->value.len = r->header_size;
+ h->value.data = r->header_start;
+
+ h->lowcase_key = h->key.data;
+
+ return NGX_OK;
+}
+
+
+void
+ngx_http_spdy_v3_request_headers_init()
+{
+ ngx_uint_t i;
+ ngx_http_spdy_request_header_t *h;
+
+ for (i = 0; i < NGX_SPDY_REQUEST_HEADERS; i++) {
+ h = &ngx_http_spdy_request_headers[i];
+ h->hash = ngx_hash_key(h->header, h->len);
+ }
+}
+
+
+static ngx_int_t
+ngx_http_spdy_parse_method(ngx_http_request_t *r)
+{
+ size_t k, len;
+ ngx_uint_t n;
+ const u_char *p, *m;
+
+ /*
+ * This array takes less than 256 sequential bytes,
+ * and if typical CPU cache line size is 64 bytes,
+ * it is prefetched for 4 load operations.
+ */
+ static const struct {
+ u_char len;
+ const u_char method[11];
+ uint32_t value;
+ } tests[] = {
+ { 3, "GET", NGX_HTTP_GET },
+ { 4, "POST", NGX_HTTP_POST },
+ { 4, "HEAD", NGX_HTTP_HEAD },
+ { 7, "OPTIONS", NGX_HTTP_OPTIONS },
+ { 8, "PROPFIND", NGX_HTTP_PROPFIND },
+ { 3, "PUT", NGX_HTTP_PUT },
+ { 5, "MKCOL", NGX_HTTP_MKCOL },
+ { 6, "DELETE", NGX_HTTP_DELETE },
+ { 4, "COPY", NGX_HTTP_COPY },
+ { 4, "MOVE", NGX_HTTP_MOVE },
+ { 9, "PROPPATCH", NGX_HTTP_PROPPATCH },
+ { 4, "LOCK", NGX_HTTP_LOCK },
+ { 6, "UNLOCK", NGX_HTTP_UNLOCK },
+ { 5, "PATCH", NGX_HTTP_PATCH },
+ { 5, "TRACE", NGX_HTTP_TRACE }
+ }, *test;
+
+ if (r->method_name.len) {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ len = r->header_size;
+
+ r->method_name.len = len;
+ r->method_name.data = r->header_start;
+
+ test = tests;
+ n = sizeof(tests) / sizeof(tests[0]);
+
+ do {
+ if (len == test->len) {
+ p = r->method_name.data;
+ m = test->method;
+ k = len;
+
+ do {
+ if (*p++ != *m++) {
+ goto next;
+ }
+ } while (--k);
+
+ r->method = test->value;
+ return NGX_OK;
+ }
+
+ next:
+ test++;
+
+ } while (--n);
+
+ p = r->method_name.data;
+
+ do {
+ if ((*p < 'A' || *p > 'Z') && *p != '_') {
+ ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
+ "client sent invalid method");
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ p++;
+
+ } while (--len);
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_parse_scheme(ngx_http_request_t *r)
+{
+ if (r->schema_start) {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ r->schema_start = r->header_start;
+ r->schema_end = r->header_end;
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_parse_path(ngx_http_request_t *r)
+{
+ if (r->unparsed_uri.len) {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ r->uri_start = r->header_start;
+ r->uri_end = r->header_end;
+
+ if (ngx_http_parse_uri(r) != NGX_OK) {
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ if (ngx_http_process_request_uri(r) != NGX_OK) {
+ return NGX_ERROR;
+ }
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_parse_version(ngx_http_request_t *r)
+{
+ u_char *p, ch;
+
+ if (r->http_protocol.len) {
+ return NGX_HTTP_PARSE_INVALID_HEADER;
+ }
+
+ p = r->header_start;
+
+ if (r->header_size < 8 || !(ngx_str5cmp(p, 'H', 'T', 'T', 'P', '/'))) {
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ ch = *(p + 5);
+
+ if (ch < '1' || ch > '9') {
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ r->http_major = ch - '0';
+
+ for (p += 6; p != r->header_end - 2; p++) {
+
+ ch = *p;
+
+ if (ch < '0' || ch > '9') {
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ r->http_major = r->http_major * 10 + ch - '0';
+ }
+
+ if (*p != '.') {
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ ch = *(p + 1);
+
+ if (ch < '0' || ch > '9') {
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ r->http_minor = ch - '0';
+
+ for (p += 2; p != r->header_end; p++) {
+
+ ch = *p;
+
+ if (ch < '0' || ch > '9') {
+ return NGX_HTTP_PARSE_INVALID_REQUEST;
+ }
+
+ r->http_minor = r->http_minor * 10 + ch - '0';
+ }
+
+ r->http_protocol.len = r->header_size;
+ r->http_protocol.data = r->header_start;
+ r->http_version = r->http_major * 1000 + r->http_minor;
+
+ return NGX_OK;
+}
+
+static ngx_int_t
+ngx_http_spdy_parse_host(ngx_http_request_t *r)
+{
+ ngx_table_elt_t *h;
+
+ h = ngx_list_push(&r->headers_in.headers);
+
+ if (h == NULL) {
+ ngx_http_spdy_close_stream(r->spdy_stream,
+ NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return NGX_ERROR;
+ }
+
+ h->key.len = r->lowcase_index - 1;
+ h->key.data = r->header_name_start + 1;
+ h->hash = ngx_hash_key(h->key.data, h->key.len);
+
+ h->value.len = r->header_size;
+ h->value.data = r->header_start;
+
+ h->lowcase_key = h->key.data;
+
+ r->headers_in.host = h;
+
+ return NGX_OK;
+}
+
+
+static ngx_int_t
+ngx_http_spdy_construct_request_line(ngx_http_request_t *r)
+{
+ u_char *p;
+
+ if (r->method_name.len == 0
+ || r->unparsed_uri.len == 0
+ || r->http_protocol.len == 0)
+ {
+ ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
+ return NGX_ERROR;
+ }
+
+ r->request_line.len = r->method_name.len + 1
+ + r->unparsed_uri.len + 1
+ + r->http_protocol.len;
+
+ p = ngx_pnalloc(r->pool, r->request_line.len + 1);
+ if (p == NULL) {
+ ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
+ return NGX_ERROR;
+ }
+
+ r->request_line.data = p;
+
+ p = ngx_cpymem(p, r->method_name.data, r->method_name.len);
+
+ *p++ = ' ';
+
+ p = ngx_cpymem(p, r->unparsed_uri.data, r->unparsed_uri.len);
+
+ *p++ = ' ';
+
+ ngx_memcpy(p, r->http_protocol.data, r->http_protocol.len + 1);
+
+ /* some modules expect the space character after method name */
+ r->method_name.data = r->request_line.data;
+
+ return NGX_OK;
+}
+
+
+static void
+ngx_http_spdy_run_request(ngx_http_request_t *r)
+{
+ ngx_uint_t i;
+ ngx_list_part_t *part;
+ ngx_table_elt_t *h;
+ ngx_http_header_t *hh;
+ ngx_http_core_main_conf_t *cmcf;
+
+ if (ngx_http_spdy_construct_request_line(r) != NGX_OK) {
+ return;
+ }
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy http request line: \"%V\"", &r->request_line);
+
+ cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
+
+ part = &r->headers_in.headers.part;
+ h = part->elts;
+
+ for (i = 0 ;; i++) {
+
+ if (i >= part->nelts) {
+ if (part->next == NULL) {
+ break;
+ }
+
+ part = part->next;
+ h = part->elts;
+ i = 0;
+ }
+
+ hh = ngx_hash_find(&cmcf->headers_in_hash, h[i].hash,
+ h[i].lowcase_key, h[i].key.len);
+
+ if (hh && hh->handler(r, &h[i], hh->offset) != NGX_OK) {
+ return;
+ }
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "http header: \"%V: %V\"", &h[i].key, &h[i].value);
+ }
+
+ r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
+
+ if (ngx_http_process_request_header(r) != NGX_OK) {
+ return;
+ }
+
+ ngx_http_process_request(r);
+}
+
+
+static ngx_int_t
+ngx_http_spdy_init_request_body(ngx_http_request_t *r)
+{
+ ngx_buf_t *buf;
+ ngx_temp_file_t *tf;
+ ngx_http_request_body_t *rb;
+ ngx_http_core_loc_conf_t *clcf;
+
+ rb = ngx_pcalloc(r->pool, sizeof(ngx_http_request_body_t));
+ if (rb == NULL) {
+ return NGX_ERROR;
+ }
+
+ r->request_body = rb;
+
+ if (r->spdy_stream->in_closed) {
+ return NGX_OK;
+ }
+
+ rb->rest = r->headers_in.content_length_n;
+
+ clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
+
+ if (r->request_body_in_file_only
+ || rb->rest > (off_t) clcf->client_body_buffer_size
+ || rb->rest < 0)
+ {
+ tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
+ if (tf == NULL) {
+ return NGX_ERROR;
+ }
+
+ tf->file.fd = NGX_INVALID_FILE;
+ tf->file.log = r->connection->log;
+ tf->path = clcf->client_body_temp_path;
+ tf->pool = r->pool;
+ tf->warn = "a client request body is buffered to a temporary file";
+ tf->log_level = r->request_body_file_log_level;
+ tf->persistent = r->request_body_in_persistent_file;
+ tf->clean = r->request_body_in_clean_file;
+
+ if (r->request_body_file_group_access) {
+ tf->access = 0660;
+ }
+
+ rb->temp_file = tf;
+
+ if (r->spdy_stream->in_closed
+ && ngx_create_temp_file(&tf->file, tf->path, tf->pool,
+ tf->persistent, tf->clean, tf->access)
+ != NGX_OK)
+ {
+ return NGX_ERROR;
+ }
+
+ buf = ngx_calloc_buf(r->pool);
+ if (buf == NULL) {
+ return NGX_ERROR;
+ }
+
+ } else {
+
+ if (rb->rest == 0) {
+ return NGX_OK;
+ }
+
+ buf = ngx_create_temp_buf(r->pool, (size_t) rb->rest);
+ if (buf == NULL) {
+ return NGX_ERROR;
+ }
+ }
+
+ rb->buf = buf;
+
+ rb->bufs = ngx_alloc_chain_link(r->pool);
+ if (rb->bufs == NULL) {
+ return NGX_ERROR;
+ }
+
+ rb->bufs->buf = buf;
+ rb->bufs->next = NULL;
+
+ rb->rest = 0;
+
+ return NGX_OK;
+}
+
+
+#if 0
+ngx_int_t
+ngx_http_spdy_read_request_body(ngx_http_request_t *r,
+ ngx_http_client_body_handler_pt post_handler)
+{
+ ngx_http_spdy_stream_t *stream;
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+ "spdy read request body");
+
+ stream = r->spdy_stream;
+
+ switch (stream->skip_data) {
+
+ case NGX_SPDY_DATA_DISCARD:
+ post_handler(r);
+ return NGX_OK;
+
+ case NGX_SPDY_DATA_ERROR:
+ if (r->headers_in.content_length_n == -1) {
+ return NGX_HTTP_REQUEST_ENTITY_TOO_LARGE;
+ } else {
+ return NGX_HTTP_BAD_REQUEST;
+ }
+
+ case NGX_SPDY_DATA_INTERNAL_ERROR:
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ if (!r->request_body && ngx_http_spdy_init_request_body(r) != NGX_OK) {
+ stream->skip_data = NGX_SPDY_DATA_INTERNAL_ERROR;
+ return NGX_HTTP_INTERNAL_SERVER_ERROR;
+ }
+
+ if (stream->in_closed) {
+ post_handler(r);
+ return NGX_OK;
+ }
+
+ r->request_body->post_handler = post_handler;
+
+ r->read_event_handler = ngx_http_test_reading;
+ r->write_event_handler = ngx_http_request_empty_handler;
+
+ return NGX_AGAIN;
+}
+#endif
+
+
+void
+ngx_http_spdy_v3_close_stream(ngx_http_spdy_stream_t *stream, ngx_int_t rc)
+{
+ ngx_event_t *ev;
+ ngx_connection_t *fc;
+ ngx_http_spdy_stream_t **index, *s;
+ ngx_http_spdy_srv_conf_t *sscf;
+ ngx_http_spdy_connection_t *sc;
+
+ sc = stream->connection;
+
+ ngx_log_debug2(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy close stream %ui, processing %ui",
+ stream->id, sc->processing);
+
+ if (!stream->out_closed) {
+ if (ngx_http_spdy_send_rst_stream(sc, stream->id,
+ NGX_SPDY_INTERNAL_ERROR,
+ stream->priority)
+ != NGX_OK)
+ {
+ sc->connection->error = 1;
+ }
+ }
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ index = sc->streams_index + ngx_http_spdy_stream_index(sscf, stream->id);
+
+ for ( ;; ) {
+ s = *index;
+
+ if (s == NULL) {
+ break;
+ }
+
+ if (s == stream) {
+ *index = s->index;
+ break;
+ }
+
+ index = &s->index;
+ }
+
+ fc = stream->request->connection;
+
+ ngx_http_free_request(stream->request, rc);
+
+ ev = fc->read;
+
+ if (ev->active || ev->disabled) {
+ ngx_log_error(NGX_LOG_ALERT, sc->connection->log, 0,
+ "spdy fake read event was activated");
+ }
+
+ if (ev->timer_set) {
+ ngx_del_timer(ev);
+ }
+
+ if (ev->prev) {
+ ngx_delete_posted_event(ev);
+ }
+
+ ev = fc->write;
+
+ if (ev->active || ev->disabled) {
+ ngx_log_error(NGX_LOG_ALERT, sc->connection->log, 0,
+ "spdy fake write event was activated");
+ }
+
+ if (ev->timer_set) {
+ ngx_del_timer(ev);
+ }
+
+ if (ev->prev) {
+ ngx_delete_posted_event(ev);
+ }
+
+ fc->data = sc->free_fake_connections;
+ sc->free_fake_connections = fc;
+
+ sc->processing--;
+
+ if (sc->processing || sc->blocked) {
+ return;
+ }
+
+ ev = sc->connection->read;
+
+ ev->handler = ngx_http_spdy_handle_connection_handler;
+ ngx_post_event(ev, &ngx_posted_events);
+}
+
+
+static void
+ngx_http_spdy_handle_connection_handler(ngx_event_t *rev)
+{
+ ngx_connection_t *c;
+
+ rev->handler = ngx_http_spdy_read_handler;
+
+ if (rev->ready) {
+ ngx_http_spdy_read_handler(rev);
+ return;
+ }
+
+ c = rev->data;
+
+ ngx_http_spdy_handle_connection(c->data);
+}
+
+
+static void
+ngx_http_spdy_keepalive_handler(ngx_event_t *rev)
+{
+ ngx_connection_t *c;
+ ngx_http_spdy_srv_conf_t *sscf;
+ ngx_http_spdy_connection_t *sc;
+
+ c = rev->data;
+
+ ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "spdy keepalive handler");
+
+ if (rev->timedout || c->close) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+#if (NGX_HAVE_KQUEUE)
+
+ if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
+ if (rev->pending_eof) {
+ c->log->handler = NULL;
+ ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
+ "kevent() reported that client %V closed "
+ "keepalive connection", &c->addr_text);
+#if (NGX_HTTP_SSL)
+ if (c->ssl) {
+ c->ssl->no_send_shutdown = 1;
+ }
+#endif
+ ngx_http_close_connection(c);
+ return;
+ }
+ }
+
+#endif
+
+ c->destroyed = 0;
+ c->idle = 0;
+ ngx_reusable_connection(c, 0);
+
+ sc = c->data;
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ sc->pool = ngx_create_pool(sscf->pool_size, sc->connection->log);
+ if (sc->pool == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ sc->streams_index = ngx_pcalloc(sc->pool,
+ ngx_http_spdy_streams_index_size(sscf)
+ * sizeof(ngx_http_spdy_stream_t *));
+ if (sc->streams_index == NULL) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ c->write->handler = ngx_http_spdy_write_handler;
+
+ rev->handler = ngx_http_spdy_read_handler;
+ ngx_http_spdy_read_handler(rev);
+}
+
+
+static void
+ngx_http_spdy_finalize_connection(ngx_http_spdy_connection_t *sc,
+ ngx_int_t rc)
+{
+ ngx_uint_t i, size;
+ ngx_event_t *ev;
+ ngx_connection_t *c, *fc;
+ ngx_http_request_t *r;
+ ngx_http_spdy_stream_t *stream;
+ ngx_http_spdy_srv_conf_t *sscf;
+
+ c = sc->connection;
+
+ if (!sc->processing) {
+ ngx_http_close_connection(c);
+ return;
+ }
+
+ c->error = 1;
+ c->read->handler = ngx_http_empty_handler;
+ c->write->handler = ngx_http_empty_handler;
+
+ sc->last_out = NULL;
+
+ sc->blocked = 1;
+
+ sscf = ngx_http_get_module_srv_conf(sc->http_connection->conf_ctx,
+ ngx_http_spdy_module);
+
+ size = ngx_http_spdy_streams_index_size(sscf);
+
+ for (i = 0; i < size; i++) {
+ stream = sc->streams_index[i];
+
+ while (stream) {
+ r = stream->request;
+
+ fc = r->connection;
+ fc->error = 1;
+
+ if (stream->waiting) {
+ r->blocked -= stream->waiting;
+ stream->waiting = 0;
+ ev = fc->write;
+
+ } else {
+ ev = fc->read;
+ }
+
+ stream = stream->index;
+
+ ev->eof = 1;
+ ev->handler(ev);
+ }
+ }
+
+ sc->blocked = 0;
+
+ if (sc->processing) {
+ return;
+ }
+
+ ngx_http_close_connection(c);
+}
+
+
+static void
+ngx_http_spdy_pool_cleanup(void *data)
+{
+ ngx_http_spdy_connection_t *sc = data;
+
+ if (sc->pool) {
+ ngx_destroy_pool(sc->pool);
+ }
+}
+
+
+static void *
+ngx_http_spdy_zalloc(void *opaque, u_int items, u_int size)
+{
+ ngx_http_spdy_connection_t *sc = opaque;
+
+ return ngx_palloc(sc->connection->pool, items * size);
+}
+
+
+static void
+ngx_http_spdy_zfree(void *opaque, void *address)
+{
+#if 0
+ ngx_http_spdy_connection_t *sc = opaque;
+
+ ngx_log_debug1(NGX_LOG_DEBUG_HTTP, sc->connection->log, 0,
+ "spdy zfree: %p", address);
+#endif
+}